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content="Messier 4 (M4) is a bright globular cluster located in the southern constellation Scorpius. It lies at an approximate distance of 7,200 light years from Earth and has an apparent magnitude of 5.9. The cluster has the designation NGC 6121 in the New General Catalogue. M4 was discovered by the Swiss astronomer and mathematician Jean-Philippe Loys… Read More »Messier 4" /> <meta property="og:url" content="https://www.messier-objects.com/messier-4/" /> <meta property="og:site_name" content="Messier Objects" /> <meta property="article:published_time" content="2015-01-31T23:04:57+00:00" /> <meta property="article:modified_time" content="2022-03-01T18:44:55+00:00" /> <meta property="og:image" content="https://www.messier-objects.com/wp-content/uploads/2015/01/Messier-4.jpg" /> <meta property="og:image:width" content="1032" /> <meta property="og:image:height" content="1024" /> <meta property="og:image:type" content="image/jpeg" /> <meta name="author" content="admin" /> <meta name="twitter:card" content="summary_large_image" /> <meta name="twitter:label1" content="Written by" /> <meta name="twitter:data1" content="admin" /> <meta name="twitter:label2" content="Est. reading time" /> <meta name="twitter:data2" content="11 minutes" /> <script type="application/ld+json" class="yoast-schema-graph">{"@context":"https://schema.org","@graph":[{"@type":"WebPage","@id":"https://www.messier-objects.com/messier-4/","url":"https://www.messier-objects.com/messier-4/","name":"Messier 4 - Messier Objects","isPartOf":{"@id":"https://www.messier-objects.com/#website"},"primaryImageOfPage":{"@id":"https://www.messier-objects.com/messier-4/#primaryimage"},"image":{"@id":"https://www.messier-objects.com/messier-4/#primaryimage"},"thumbnailUrl":"https://www.messier-objects.com/wp-content/uploads/2015/01/Messier-4.jpg","datePublished":"2015-01-31T23:04:57+00:00","dateModified":"2022-03-01T18:44:55+00:00","author":{"@id":"https://www.messier-objects.com/#/schema/person/ea71cf4125dc061822c77d3ec6ed782e"},"breadcrumb":{"@id":"https://www.messier-objects.com/messier-4/#breadcrumb"},"inLanguage":"en-US","potentialAction":[{"@type":"ReadAction","target":["https://www.messier-objects.com/messier-4/"]}]},{"@type":"ImageObject","inLanguage":"en-US","@id":"https://www.messier-objects.com/messier-4/#primaryimage","url":"https://www.messier-objects.com/wp-content/uploads/2015/01/Messier-4.jpg","contentUrl":"https://www.messier-objects.com/wp-content/uploads/2015/01/Messier-4.jpg","width":1032,"height":1024,"caption":"This sparkling picture taken by the NASA/ESA Hubble Space Telescope shows the centre of globular cluster M 4. The power of Hubble has resolved the cluster into a multitude of glowing orbs, each a colossal nuclear furnace. M 4 is relatively close to us, lying 7200 light-years distant, making it a prime object for study. It contains several tens of thousand stars and is noteworthy in being home to many white dwarfs — the cores of ancient, dying stars whose outer layers have drifted away into space. In July 2003, Hubble helped make the astounding discovery of a planet called PSR B1620-26 b, 2.5 times the mass of Jupiter, which is located in this cluster. Its age is estimated to be around 13 billion years — almost three times as old as the Solar System! It is also unusual in that it orbits a binary system of a white dwarf and a pulsar (a type of neutron star). 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9.372-33.942 0z"/></svg></span></div></div> <ul class="sub-menu"> <li id="menu-item-2870" class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2870"><div class="wrap"><a href="https://www.messier-objects.com/messier-1-crab-nebula/">Messier 1: Crab Nebula</a></div></li> <li id="menu-item-2871" class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2871"><div class="wrap"><a href="https://www.messier-objects.com/messier-2/">Messier 2</a></div></li> <li id="menu-item-2872" class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2872"><div class="wrap"><a href="https://www.messier-objects.com/messier-3/">Messier 3</a></div></li> <li id="menu-item-2873" class="menu-item menu-item-type-post_type menu-item-object-post current-menu-item menu-item-2873 nv-active"><div class="wrap"><a href="https://www.messier-objects.com/messier-4/" aria-current="page">Messier 4</a></div></li> <li id="menu-item-2874" class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2874"><div class="wrap"><a href="https://www.messier-objects.com/messier-5/">Messier 5</a></div></li> <li id="menu-item-2875" class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2875"><div class="wrap"><a href="https://www.messier-objects.com/messier-6-butterfly-cluster/">Messier 6: Butterfly Cluster</a></div></li> <li id="menu-item-2876" class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2876"><div class="wrap"><a href="https://www.messier-objects.com/messier-7-ptolemys-cluster/">Messier 7: Ptolemy’s Cluster</a></div></li> <li id="menu-item-2877" class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2877"><div class="wrap"><a href="https://www.messier-objects.com/messier-8-lagoon-nebula/">Messier 8: Lagoon Nebula</a></div></li> <li id="menu-item-2878" class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2878"><div class="wrap"><a href="https://www.messier-objects.com/messier-9/">Messier 9</a></div></li> <li id="menu-item-2879" class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2879"><div class="wrap"><a href="https://www.messier-objects.com/messier-10/">Messier 10</a></div></li> <li id="menu-item-2880" class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2880"><div class="wrap"><a href="https://www.messier-objects.com/messier-11-wild-duck-cluster/">Messier 11: Wild Duck Cluster</a></div></li> <li id="menu-item-2881" class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2881"><div class="wrap"><a href="https://www.messier-objects.com/messier-12-gumball-globular/">Messier 12: Gumball Globular</a></div></li> <li id="menu-item-2882" class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2882"><div class="wrap"><a href="https://www.messier-objects.com/messier-13-hercules-globular-cluster/">Messier 13: Hercules Globular Cluster</a></div></li> <li id="menu-item-2883" class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2883"><div class="wrap"><a href="https://www.messier-objects.com/messier-14/">Messier 14</a></div></li> <li id="menu-item-2884" class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2884"><div class="wrap"><a href="https://www.messier-objects.com/messier-15-great-pegasus-cluster/">Messier 15: Great Pegasus Cluster</a></div></li> <li id="menu-item-2885" class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2885"><div class="wrap"><a href="https://www.messier-objects.com/messier-16-eagle-nebula/">Messier 16: Eagle Nebula</a></div></li> <li id="menu-item-2886" class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2886"><div class="wrap"><a href="https://www.messier-objects.com/messier-17-omega-nebula/">Messier 17: Omega Nebula</a></div></li> <li id="menu-item-2887" class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2887"><div class="wrap"><a href="https://www.messier-objects.com/messier-18/">Messier 18</a></div></li> <li id="menu-item-2888" class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2888"><div class="wrap"><a href="https://www.messier-objects.com/messier-19/">Messier 19</a></div></li> <li id="menu-item-2889" class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2889"><div class="wrap"><a href="https://www.messier-objects.com/messier-20-trifid-nebula/">Messier 20: Trifid Nebula</a></div></li> <li id="menu-item-2890" class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2890"><div class="wrap"><a href="https://www.messier-objects.com/messier-21/">Messier 21</a></div></li> <li id="menu-item-2891" class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2891"><div class="wrap"><a href="https://www.messier-objects.com/messier-22-sagittarius-cluster/">Messier 22: Sagittarius Cluster</a></div></li> <li id="menu-item-2892" class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2892"><div class="wrap"><a href="https://www.messier-objects.com/messier-23/">Messier 23</a></div></li> <li id="menu-item-2893" class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2893"><div class="wrap"><a href="https://www.messier-objects.com/messier-24-sagittarius-star-cloud/">Messier 24: Sagittarius Star Cloud</a></div></li> <li id="menu-item-2894" class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2894"><div class="wrap"><a href="https://www.messier-objects.com/messier-25/">Messier 25</a></div></li> <li id="menu-item-2895" class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2895"><div class="wrap"><a href="https://www.messier-objects.com/messier-26/">Messier 26</a></div></li> <li id="menu-item-2896" class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2896"><div class="wrap"><a href="https://www.messier-objects.com/messier-27-dumbbell-nebula/">Messier 27: Dumbbell Nebula</a></div></li> <li id="menu-item-2897" class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2897"><div class="wrap"><a href="https://www.messier-objects.com/messier-28/">Messier 28</a></div></li> <li id="menu-item-2898" class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2898"><div class="wrap"><a href="https://www.messier-objects.com/messier-29/">Messier 29</a></div></li> <li id="menu-item-2899" class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2899"><div class="wrap"><a href="https://www.messier-objects.com/messier-30/">Messier 30</a></div></li> <li id="menu-item-2900" class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2900"><div class="wrap"><a href="https://www.messier-objects.com/messier-31-andromeda-galaxy/">Messier 31: Andromeda Galaxy</a></div></li> <li id="menu-item-2901" class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2901"><div class="wrap"><a href="https://www.messier-objects.com/messier-32-le-gentil/">Messier 32: Le Gentil</a></div></li> <li id="menu-item-2902" class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2902"><div class="wrap"><a href="https://www.messier-objects.com/messier-33-triangulum-galaxy/">Messier 33: Triangulum Galaxy</a></div></li> <li id="menu-item-2903" class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2903"><div class="wrap"><a href="https://www.messier-objects.com/messier-34/">Messier 34</a></div></li> <li id="menu-item-2904" class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2904"><div class="wrap"><a href="https://www.messier-objects.com/messier-35/">Messier 35</a></div></li> <li id="menu-item-2905" class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2905"><div class="wrap"><a href="https://www.messier-objects.com/messier-36-pinwheel-cluster/">Messier 36: Pinwheel Cluster</a></div></li> <li id="menu-item-2906" class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2906"><div class="wrap"><a href="https://www.messier-objects.com/messier-37/">Messier 37</a></div></li> <li id="menu-item-2907" class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2907"><div class="wrap"><a href="https://www.messier-objects.com/messier-38-starfish-cluster/">Messier 38: Starfish Cluster</a></div></li> <li id="menu-item-2908" class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2908"><div class="wrap"><a href="https://www.messier-objects.com/messier-39/">Messier 39</a></div></li> <li id="menu-item-2909" class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2909"><div class="wrap"><a href="https://www.messier-objects.com/messier-40-winnecke-4/">Messier 40: Winnecke 4</a></div></li> <li id="menu-item-2910" class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2910"><div class="wrap"><a href="https://www.messier-objects.com/messier-41/">Messier 41</a></div></li> <li id="menu-item-2911" class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2911"><div class="wrap"><a href="https://www.messier-objects.com/messier-42-orion-nebula/">Messier 42: Orion Nebula</a></div></li> <li id="menu-item-2912" class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2912"><div class="wrap"><a href="https://www.messier-objects.com/messier-43-de-mairans-nebula/">Messier 43: De Mairan’s Nebula</a></div></li> <li id="menu-item-2913" class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2913"><div class="wrap"><a href="https://www.messier-objects.com/messier-44-beehive-cluster/">Messier 44: Beehive Cluster</a></div></li> <li id="menu-item-2914" class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2914"><div class="wrap"><a href="https://www.messier-objects.com/messier-45-pleiades/">Messier 45: Pleiades</a></div></li> <li id="menu-item-2915" class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2915"><div class="wrap"><a href="https://www.messier-objects.com/messier-46/">Messier 46</a></div></li> <li id="menu-item-2916" class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2916"><div class="wrap"><a href="https://www.messier-objects.com/messier-47/">Messier 47</a></div></li> <li id="menu-item-2917" class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2917"><div class="wrap"><a href="https://www.messier-objects.com/messier-48/">Messier 48</a></div></li> <li id="menu-item-2918" class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2918"><div class="wrap"><a href="https://www.messier-objects.com/messier-49/">Messier 49</a></div></li> <li id="menu-item-2919" class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2919"><div class="wrap"><a href="https://www.messier-objects.com/messier-50-heart-shaped-cluster/">Messier 50: Heart-Shaped Cluster</a></div></li> <li id="menu-item-2920" class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2920"><div class="wrap"><a href="https://www.messier-objects.com/messier-51-whirlpool-galaxy/">Messier 51: Whirlpool Galaxy</a></div></li> <li id="menu-item-2921" class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2921"><div class="wrap"><a href="https://www.messier-objects.com/messier-52/">Messier 52</a></div></li> <li id="menu-item-2922" class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2922"><div class="wrap"><a href="https://www.messier-objects.com/messier-53/">Messier 53</a></div></li> <li id="menu-item-2923" class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2923"><div class="wrap"><a href="https://www.messier-objects.com/messier-54/">Messier 54</a></div></li> <li id="menu-item-2924" class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2924"><div class="wrap"><a href="https://www.messier-objects.com/messier-55-summer-rose-star/">Messier 55: Summer Rose Star</a></div></li> <li id="menu-item-2925" class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2925"><div class="wrap"><a href="https://www.messier-objects.com/messier-56/">Messier 56</a></div></li> <li id="menu-item-2926" class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2926"><div class="wrap"><a href="https://www.messier-objects.com/messier-57-ring-nebula/">Messier 57: Ring Nebula</a></div></li> <li id="menu-item-2927" class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2927"><div class="wrap"><a href="https://www.messier-objects.com/messier-58/">Messier 58</a></div></li> <li id="menu-item-2928" class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2928"><div class="wrap"><a href="https://www.messier-objects.com/messier-59/">Messier 59</a></div></li> <li id="menu-item-2929" class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2929"><div class="wrap"><a href="https://www.messier-objects.com/messier-60/">Messier 60</a></div></li> <li id="menu-item-2930" class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2930"><div class="wrap"><a href="https://www.messier-objects.com/messier-61/">Messier 61</a></div></li> <li id="menu-item-2931" class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2931"><div class="wrap"><a href="https://www.messier-objects.com/messier-62/">Messier 62</a></div></li> <li id="menu-item-2932" class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2932"><div class="wrap"><a href="https://www.messier-objects.com/messier-63-sunflower-galaxy/">Messier 63: Sunflower Galaxy</a></div></li> <li id="menu-item-2933" class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2933"><div class="wrap"><a href="https://www.messier-objects.com/messier-64-black-eye-galaxy/">Messier 64: Black Eye Galaxy</a></div></li> <li id="menu-item-2934" class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2934"><div class="wrap"><a href="https://www.messier-objects.com/messier-65/">Messier 65</a></div></li> <li id="menu-item-2935" class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2935"><div class="wrap"><a href="https://www.messier-objects.com/messier-66/">Messier 66</a></div></li> <li id="menu-item-2936" class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2936"><div class="wrap"><a href="https://www.messier-objects.com/messier-67-king-cobra-cluster/">Messier 67: King Cobra Cluster</a></div></li> <li id="menu-item-2937" class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2937"><div class="wrap"><a href="https://www.messier-objects.com/messier-68/">Messier 68</a></div></li> <li id="menu-item-2938" class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2938"><div class="wrap"><a href="https://www.messier-objects.com/messier-69/">Messier 69</a></div></li> <li id="menu-item-2939" class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2939"><div class="wrap"><a href="https://www.messier-objects.com/messier-70/">Messier 70</a></div></li> <li id="menu-item-2940" class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2940"><div class="wrap"><a href="https://www.messier-objects.com/messier-71/">Messier 71</a></div></li> <li id="menu-item-2941" class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2941"><div class="wrap"><a href="https://www.messier-objects.com/messier-72/">Messier 72</a></div></li> <li id="menu-item-2942" class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2942"><div class="wrap"><a href="https://www.messier-objects.com/messier-73/">Messier 73</a></div></li> <li id="menu-item-2943" class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2943"><div class="wrap"><a href="https://www.messier-objects.com/messier-74-phantom-galaxy/">Messier 74: Phantom Galaxy</a></div></li> <li id="menu-item-2944" class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2944"><div class="wrap"><a href="https://www.messier-objects.com/messier-75/">Messier 75</a></div></li> <li id="menu-item-2945" class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2945"><div class="wrap"><a href="https://www.messier-objects.com/messier-76-little-dumbbell-nebula/">Messier 76: Little Dumbbell Nebula</a></div></li> <li id="menu-item-2946" class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2946"><div class="wrap"><a href="https://www.messier-objects.com/messier-77-cetus-a/">Messier 77: Cetus A</a></div></li> <li id="menu-item-2947" class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2947"><div class="wrap"><a href="https://www.messier-objects.com/messier-78/">Messier 78</a></div></li> <li id="menu-item-2948" class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2948"><div class="wrap"><a href="https://www.messier-objects.com/messier-79/">Messier 79</a></div></li> <li id="menu-item-2949" class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2949"><div class="wrap"><a href="https://www.messier-objects.com/messier-80/">Messier 80</a></div></li> <li id="menu-item-2950" class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2950"><div class="wrap"><a href="https://www.messier-objects.com/messier-81-bodes-galaxy/">Messier 81: Bode’s Galaxy</a></div></li> <li id="menu-item-2951" class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2951"><div class="wrap"><a href="https://www.messier-objects.com/messier-82-cigar-galaxy/">Messier 82: Cigar Galaxy</a></div></li> <li id="menu-item-2952" class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2952"><div class="wrap"><a href="https://www.messier-objects.com/messier-83-southern-pinwheel-galaxy/">Messier 83: Southern Pinwheel Galaxy</a></div></li> <li id="menu-item-2953" class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2953"><div class="wrap"><a href="https://www.messier-objects.com/messier-84/">Messier 84</a></div></li> <li id="menu-item-2954" class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2954"><div class="wrap"><a href="https://www.messier-objects.com/messier-85/">Messier 85</a></div></li> <li id="menu-item-2955" class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2955"><div class="wrap"><a href="https://www.messier-objects.com/messier-86/">Messier 86</a></div></li> <li id="menu-item-2956" class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2956"><div class="wrap"><a href="https://www.messier-objects.com/messier-87-virgo-a/">Messier 87: Virgo A</a></div></li> <li id="menu-item-2957" class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2957"><div class="wrap"><a href="https://www.messier-objects.com/messier-88/">Messier 88</a></div></li> <li id="menu-item-2958" class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2958"><div class="wrap"><a href="https://www.messier-objects.com/messier-89/">Messier 89</a></div></li> <li id="menu-item-2959" class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2959"><div class="wrap"><a href="https://www.messier-objects.com/messier-90/">Messier 90</a></div></li> <li id="menu-item-2960" class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2960"><div class="wrap"><a href="https://www.messier-objects.com/messier-91/">Messier 91</a></div></li> <li id="menu-item-2961" class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2961"><div class="wrap"><a href="https://www.messier-objects.com/messier-92/">Messier 92</a></div></li> <li id="menu-item-2962" class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2962"><div class="wrap"><a href="https://www.messier-objects.com/messier-93/">Messier 93</a></div></li> <li id="menu-item-2963" class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2963"><div class="wrap"><a href="https://www.messier-objects.com/messier-94-cats-eye-galaxy/">Messier 94: Cat’s Eye Galaxy</a></div></li> <li id="menu-item-2964" class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2964"><div class="wrap"><a href="https://www.messier-objects.com/messier-95/">Messier 95</a></div></li> <li id="menu-item-2965" class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2965"><div class="wrap"><a href="https://www.messier-objects.com/messier-96/">Messier 96</a></div></li> <li id="menu-item-2966" class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2966"><div class="wrap"><a href="https://www.messier-objects.com/messier-97-owl-nebula/">Messier 97: Owl Nebula</a></div></li> <li id="menu-item-2967" class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2967"><div class="wrap"><a href="https://www.messier-objects.com/messier-98/">Messier 98</a></div></li> <li id="menu-item-2968" class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2968"><div class="wrap"><a href="https://www.messier-objects.com/messier-99-coma-pinwheel/">Messier 99: Coma Pinwheel</a></div></li> <li id="menu-item-2969" class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2969"><div class="wrap"><a href="https://www.messier-objects.com/messier-100/">Messier 100</a></div></li> <li id="menu-item-2970" class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2970"><div class="wrap"><a href="https://www.messier-objects.com/messier-101-pinwheel-galaxy/">Messier 101: Pinwheel Galaxy</a></div></li> <li id="menu-item-2971" class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2971"><div class="wrap"><a href="https://www.messier-objects.com/messier-102-spindle-galaxy/">Messier 102: Spindle Galaxy</a></div></li> <li id="menu-item-2972" class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2972"><div class="wrap"><a href="https://www.messier-objects.com/messier-103/">Messier 103</a></div></li> <li id="menu-item-2973" class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2973"><div class="wrap"><a href="https://www.messier-objects.com/messier-104-sombrero-galaxy/">Messier 104: Sombrero Galaxy</a></div></li> <li 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24.522-9.375 33.901-.04L224 284.505l154.745-154.021c9.379-9.335 24.544-9.317 33.901.04l22.667 22.667c9.373 9.373 9.373 24.569 0 33.941L240.971 381.476c-9.373 9.372-24.569 9.372-33.942 0z"/></svg></span></div></div> <ul class="sub-menu"> <li id="menu-item-3637" class="menu-item menu-item-type-post_type menu-item-object-page menu-item-3637"><div class="wrap"><a href="https://www.messier-objects.com/messier-objects-by-constellation/messier-objects-in-canis-major/">Messier Objects in Canis Major</a></div></li> <li id="menu-item-3636" class="menu-item menu-item-type-post_type menu-item-object-page menu-item-3636"><div class="wrap"><a href="https://www.messier-objects.com/messier-objects-by-constellation/messier-objects-in-cassiopeia/">Messier Objects in Cassiopeia</a></div></li> <li id="menu-item-3634" class="menu-item menu-item-type-post_type menu-item-object-page menu-item-3634"><div class="wrap"><a 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style="margin-left:5px;" aria-label="Toggle Messier Object List"><span class="caret"><svg fill="currentColor" aria-label="Dropdown" xmlns="http://www.w3.org/2000/svg" viewBox="0 0 448 512"><path d="M207.029 381.476L12.686 187.132c-9.373-9.373-9.373-24.569 0-33.941l22.667-22.667c9.357-9.357 24.522-9.375 33.901-.04L224 284.505l154.745-154.021c9.379-9.335 24.544-9.317 33.901.04l22.667 22.667c9.373 9.373 9.373 24.569 0 33.941L240.971 381.476c-9.373 9.372-24.569 9.372-33.942 0z"/></svg></span></button></div> <ul class="sub-menu"> <li class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2870"><div class="wrap"><a href="https://www.messier-objects.com/messier-1-crab-nebula/">Messier 1: Crab Nebula</a></div></li> <li class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2871"><div class="wrap"><a href="https://www.messier-objects.com/messier-2/">Messier 2</a></div></li> <li class="menu-item menu-item-type-post_type menu-item-object-post 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menu-item-type-post_type menu-item-object-post menu-item-2882"><div class="wrap"><a href="https://www.messier-objects.com/messier-13-hercules-globular-cluster/">Messier 13: Hercules Globular Cluster</a></div></li> <li class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2883"><div class="wrap"><a href="https://www.messier-objects.com/messier-14/">Messier 14</a></div></li> <li class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2884"><div class="wrap"><a href="https://www.messier-objects.com/messier-15-great-pegasus-cluster/">Messier 15: Great Pegasus Cluster</a></div></li> <li class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2885"><div class="wrap"><a href="https://www.messier-objects.com/messier-16-eagle-nebula/">Messier 16: Eagle Nebula</a></div></li> <li class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2886"><div class="wrap"><a href="https://www.messier-objects.com/messier-17-omega-nebula/">Messier 17: Omega Nebula</a></div></li> <li class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2887"><div class="wrap"><a href="https://www.messier-objects.com/messier-18/">Messier 18</a></div></li> <li class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2888"><div class="wrap"><a href="https://www.messier-objects.com/messier-19/">Messier 19</a></div></li> <li class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2889"><div class="wrap"><a href="https://www.messier-objects.com/messier-20-trifid-nebula/">Messier 20: Trifid Nebula</a></div></li> <li class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2890"><div class="wrap"><a href="https://www.messier-objects.com/messier-21/">Messier 21</a></div></li> <li class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2891"><div class="wrap"><a href="https://www.messier-objects.com/messier-22-sagittarius-cluster/">Messier 22: Sagittarius Cluster</a></div></li> <li class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2892"><div class="wrap"><a href="https://www.messier-objects.com/messier-23/">Messier 23</a></div></li> <li class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2893"><div class="wrap"><a href="https://www.messier-objects.com/messier-24-sagittarius-star-cloud/">Messier 24: Sagittarius Star Cloud</a></div></li> <li class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2894"><div class="wrap"><a href="https://www.messier-objects.com/messier-25/">Messier 25</a></div></li> <li class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2895"><div class="wrap"><a href="https://www.messier-objects.com/messier-26/">Messier 26</a></div></li> <li class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2896"><div class="wrap"><a href="https://www.messier-objects.com/messier-27-dumbbell-nebula/">Messier 27: Dumbbell Nebula</a></div></li> <li class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2897"><div class="wrap"><a href="https://www.messier-objects.com/messier-28/">Messier 28</a></div></li> <li class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2898"><div class="wrap"><a href="https://www.messier-objects.com/messier-29/">Messier 29</a></div></li> <li class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2899"><div class="wrap"><a href="https://www.messier-objects.com/messier-30/">Messier 30</a></div></li> <li class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2900"><div class="wrap"><a href="https://www.messier-objects.com/messier-31-andromeda-galaxy/">Messier 31: Andromeda Galaxy</a></div></li> <li class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2901"><div class="wrap"><a href="https://www.messier-objects.com/messier-32-le-gentil/">Messier 32: Le Gentil</a></div></li> <li class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2902"><div class="wrap"><a href="https://www.messier-objects.com/messier-33-triangulum-galaxy/">Messier 33: Triangulum Galaxy</a></div></li> <li class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2903"><div class="wrap"><a href="https://www.messier-objects.com/messier-34/">Messier 34</a></div></li> <li class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2904"><div class="wrap"><a href="https://www.messier-objects.com/messier-35/">Messier 35</a></div></li> <li class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2905"><div class="wrap"><a href="https://www.messier-objects.com/messier-36-pinwheel-cluster/">Messier 36: Pinwheel Cluster</a></div></li> <li class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2906"><div class="wrap"><a href="https://www.messier-objects.com/messier-37/">Messier 37</a></div></li> <li class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2907"><div class="wrap"><a href="https://www.messier-objects.com/messier-38-starfish-cluster/">Messier 38: Starfish Cluster</a></div></li> <li class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2908"><div class="wrap"><a href="https://www.messier-objects.com/messier-39/">Messier 39</a></div></li> <li class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2909"><div class="wrap"><a href="https://www.messier-objects.com/messier-40-winnecke-4/">Messier 40: Winnecke 4</a></div></li> <li class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2910"><div class="wrap"><a href="https://www.messier-objects.com/messier-41/">Messier 41</a></div></li> <li class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2911"><div class="wrap"><a href="https://www.messier-objects.com/messier-42-orion-nebula/">Messier 42: Orion Nebula</a></div></li> <li class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2912"><div class="wrap"><a href="https://www.messier-objects.com/messier-43-de-mairans-nebula/">Messier 43: De Mairan’s Nebula</a></div></li> <li class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2913"><div class="wrap"><a href="https://www.messier-objects.com/messier-44-beehive-cluster/">Messier 44: Beehive Cluster</a></div></li> <li class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2914"><div class="wrap"><a href="https://www.messier-objects.com/messier-45-pleiades/">Messier 45: Pleiades</a></div></li> <li class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2915"><div class="wrap"><a href="https://www.messier-objects.com/messier-46/">Messier 46</a></div></li> <li class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2916"><div class="wrap"><a href="https://www.messier-objects.com/messier-47/">Messier 47</a></div></li> <li class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2917"><div class="wrap"><a href="https://www.messier-objects.com/messier-48/">Messier 48</a></div></li> <li class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2918"><div class="wrap"><a href="https://www.messier-objects.com/messier-49/">Messier 49</a></div></li> <li class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2919"><div class="wrap"><a href="https://www.messier-objects.com/messier-50-heart-shaped-cluster/">Messier 50: Heart-Shaped Cluster</a></div></li> <li class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2920"><div class="wrap"><a href="https://www.messier-objects.com/messier-51-whirlpool-galaxy/">Messier 51: Whirlpool Galaxy</a></div></li> <li class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2921"><div class="wrap"><a href="https://www.messier-objects.com/messier-52/">Messier 52</a></div></li> <li class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2922"><div class="wrap"><a href="https://www.messier-objects.com/messier-53/">Messier 53</a></div></li> <li class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2923"><div class="wrap"><a href="https://www.messier-objects.com/messier-54/">Messier 54</a></div></li> <li class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2924"><div class="wrap"><a href="https://www.messier-objects.com/messier-55-summer-rose-star/">Messier 55: Summer Rose Star</a></div></li> <li class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2925"><div class="wrap"><a href="https://www.messier-objects.com/messier-56/">Messier 56</a></div></li> <li class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2926"><div class="wrap"><a href="https://www.messier-objects.com/messier-57-ring-nebula/">Messier 57: Ring Nebula</a></div></li> <li class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2927"><div class="wrap"><a href="https://www.messier-objects.com/messier-58/">Messier 58</a></div></li> <li class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2928"><div class="wrap"><a href="https://www.messier-objects.com/messier-59/">Messier 59</a></div></li> <li class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2929"><div class="wrap"><a href="https://www.messier-objects.com/messier-60/">Messier 60</a></div></li> <li class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2930"><div class="wrap"><a href="https://www.messier-objects.com/messier-61/">Messier 61</a></div></li> <li class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2931"><div class="wrap"><a href="https://www.messier-objects.com/messier-62/">Messier 62</a></div></li> <li class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2932"><div class="wrap"><a href="https://www.messier-objects.com/messier-63-sunflower-galaxy/">Messier 63: Sunflower Galaxy</a></div></li> <li class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2933"><div class="wrap"><a href="https://www.messier-objects.com/messier-64-black-eye-galaxy/">Messier 64: Black Eye Galaxy</a></div></li> <li class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2934"><div class="wrap"><a href="https://www.messier-objects.com/messier-65/">Messier 65</a></div></li> <li class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2935"><div class="wrap"><a href="https://www.messier-objects.com/messier-66/">Messier 66</a></div></li> <li class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2936"><div class="wrap"><a href="https://www.messier-objects.com/messier-67-king-cobra-cluster/">Messier 67: King Cobra Cluster</a></div></li> <li class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2937"><div class="wrap"><a href="https://www.messier-objects.com/messier-68/">Messier 68</a></div></li> <li class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2938"><div class="wrap"><a href="https://www.messier-objects.com/messier-69/">Messier 69</a></div></li> <li class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2939"><div class="wrap"><a href="https://www.messier-objects.com/messier-70/">Messier 70</a></div></li> <li class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2940"><div class="wrap"><a href="https://www.messier-objects.com/messier-71/">Messier 71</a></div></li> <li class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2941"><div class="wrap"><a href="https://www.messier-objects.com/messier-72/">Messier 72</a></div></li> <li class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2942"><div class="wrap"><a href="https://www.messier-objects.com/messier-73/">Messier 73</a></div></li> <li class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2943"><div class="wrap"><a href="https://www.messier-objects.com/messier-74-phantom-galaxy/">Messier 74: Phantom Galaxy</a></div></li> <li class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2944"><div class="wrap"><a href="https://www.messier-objects.com/messier-75/">Messier 75</a></div></li> <li class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2945"><div class="wrap"><a href="https://www.messier-objects.com/messier-76-little-dumbbell-nebula/">Messier 76: Little Dumbbell Nebula</a></div></li> <li class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2946"><div class="wrap"><a href="https://www.messier-objects.com/messier-77-cetus-a/">Messier 77: Cetus A</a></div></li> <li class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2947"><div class="wrap"><a href="https://www.messier-objects.com/messier-78/">Messier 78</a></div></li> <li class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2948"><div class="wrap"><a href="https://www.messier-objects.com/messier-79/">Messier 79</a></div></li> <li class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2949"><div class="wrap"><a href="https://www.messier-objects.com/messier-80/">Messier 80</a></div></li> <li class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2950"><div class="wrap"><a href="https://www.messier-objects.com/messier-81-bodes-galaxy/">Messier 81: Bode’s Galaxy</a></div></li> <li class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2951"><div class="wrap"><a href="https://www.messier-objects.com/messier-82-cigar-galaxy/">Messier 82: Cigar Galaxy</a></div></li> <li class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2952"><div class="wrap"><a href="https://www.messier-objects.com/messier-83-southern-pinwheel-galaxy/">Messier 83: Southern Pinwheel Galaxy</a></div></li> <li class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2953"><div class="wrap"><a href="https://www.messier-objects.com/messier-84/">Messier 84</a></div></li> <li class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2954"><div class="wrap"><a href="https://www.messier-objects.com/messier-85/">Messier 85</a></div></li> <li class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2955"><div class="wrap"><a href="https://www.messier-objects.com/messier-86/">Messier 86</a></div></li> <li class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2956"><div class="wrap"><a href="https://www.messier-objects.com/messier-87-virgo-a/">Messier 87: Virgo A</a></div></li> <li class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2957"><div class="wrap"><a href="https://www.messier-objects.com/messier-88/">Messier 88</a></div></li> <li class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2958"><div class="wrap"><a href="https://www.messier-objects.com/messier-89/">Messier 89</a></div></li> <li class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2959"><div class="wrap"><a href="https://www.messier-objects.com/messier-90/">Messier 90</a></div></li> <li class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2960"><div class="wrap"><a href="https://www.messier-objects.com/messier-91/">Messier 91</a></div></li> <li class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2961"><div class="wrap"><a href="https://www.messier-objects.com/messier-92/">Messier 92</a></div></li> <li class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2962"><div class="wrap"><a href="https://www.messier-objects.com/messier-93/">Messier 93</a></div></li> <li class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2963"><div class="wrap"><a href="https://www.messier-objects.com/messier-94-cats-eye-galaxy/">Messier 94: Cat’s Eye Galaxy</a></div></li> <li class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2964"><div class="wrap"><a href="https://www.messier-objects.com/messier-95/">Messier 95</a></div></li> <li class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2965"><div class="wrap"><a href="https://www.messier-objects.com/messier-96/">Messier 96</a></div></li> <li class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2966"><div class="wrap"><a href="https://www.messier-objects.com/messier-97-owl-nebula/">Messier 97: Owl Nebula</a></div></li> <li class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2967"><div class="wrap"><a href="https://www.messier-objects.com/messier-98/">Messier 98</a></div></li> <li class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2968"><div class="wrap"><a href="https://www.messier-objects.com/messier-99-coma-pinwheel/">Messier 99: Coma Pinwheel</a></div></li> <li class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2969"><div class="wrap"><a href="https://www.messier-objects.com/messier-100/">Messier 100</a></div></li> <li class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2970"><div class="wrap"><a href="https://www.messier-objects.com/messier-101-pinwheel-galaxy/">Messier 101: Pinwheel Galaxy</a></div></li> <li class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2971"><div class="wrap"><a href="https://www.messier-objects.com/messier-102-spindle-galaxy/">Messier 102: Spindle Galaxy</a></div></li> <li class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2972"><div class="wrap"><a href="https://www.messier-objects.com/messier-103/">Messier 103</a></div></li> <li class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2973"><div class="wrap"><a href="https://www.messier-objects.com/messier-104-sombrero-galaxy/">Messier 104: Sombrero Galaxy</a></div></li> <li class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2974"><div class="wrap"><a href="https://www.messier-objects.com/messier-105/">Messier 105</a></div></li> <li class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2975"><div class="wrap"><a href="https://www.messier-objects.com/messier-106/">Messier 106</a></div></li> <li class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2976"><div class="wrap"><a href="https://www.messier-objects.com/messier-107/">Messier 107</a></div></li> <li class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2977"><div class="wrap"><a href="https://www.messier-objects.com/messier-108-surfboard-galaxy/">Messier 108: Surfboard Galaxy</a></div></li> <li class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2978"><div class="wrap"><a href="https://www.messier-objects.com/messier-109/">Messier 109</a></div></li> <li class="menu-item menu-item-type-post_type menu-item-object-post menu-item-2979"><div class="wrap"><a href="https://www.messier-objects.com/messier-110-edward-young-star/">Messier 110: Edward Young Star</a></div></li> </ul> </li> <li class="menu-item menu-item-type-post_type menu-item-object-page menu-item-has-children menu-item-3054"><div class="wrap"><a href="https://www.messier-objects.com/messier-objects-by-constellation/"><span class="menu-item-title-wrap dd-title">Messier Objects by Constellation</span></a><button tabindex="0" type="button" class="caret-wrap navbar-toggle 114" style="margin-left:5px;" aria-label="Toggle Messier Objects by Constellation"><span class="caret"><svg 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media="all">.messier_objects_header{display:inline-block;width:320px;height:50px}@media (max-width:400px){.messier_objects_header{display:none}}@media (min-width:500px){.messier_objects_header{width:320px;height:100px}}@media (min-width:800px){.messier_objects_header{width:728px;height:90px}}</style> <ins class="adsbygoogle messier_objects_header" data-ad-client="ca-pub-0663561204264333" data-ad-slot="5272327740"></ins> <script async src="//pagead2.googlesyndication.com/pagead/js/adsbygoogle.js"></script> <script>(adsbygoogle = window.adsbygoogle || []).push({});</script> </div> <main id="content" class="neve-main"> <div class="container single-post-container"> <div class="row"> <article id="post-89" class="nv-single-post-wrap col post-89 post type-post status-publish format-standard has-post-thumbnail hentry category-globular-cluster tag-antares tag-crab-pulsar tag-fsr-1767 tag-genesis-planet tag-jean-philippe-loys-de-cheseaux tag-lacaille-i-9 tag-m4 tag-messier-4 tag-methuselah tag-ngc-6121 tag-ngc-6397 tag-nicolas-louis-de-lacaille tag-psr-1821-24 tag-psr-b1620-26 tag-scorpius-constellation tag-william-henry-smyth tag-william-herschel"> <div class="entry-header" ><div class="nv-title-meta-wrap"><small class="nv--yoast-breadcrumb neve-breadcrumbs-wrapper"><span><span><a href="https://www.messier-objects.com/">Home</a></span> » <span class="breadcrumb_last" aria-current="page">Messier 4</span></span></small><h1 class="title entry-title">Messier 4</h1><ul class="nv-meta-list"><li class="meta author vcard no-mobile"><span class="author-name fn">by <a href="https://www.messier-objects.com/author/admin/" title="Posts by admin" rel="author">admin</a></span></li><li class="meta date posted-on"><time class="entry-date published" datetime="2015-01-31T23:04:57+00:00" content="2015-01-31">January 31, 2015</time><time class="updated" datetime="2022-03-01T18:44:55+00:00">March 1, 2022</time></li></ul></div></div><div class="nv-content-wrap entry-content"><p>Messier 4 (M4) is a bright globular cluster located in the southern constellation <a href="https://www.constellation-guide.com/constellation-list/scorpius-constellation/">Scorpius</a>. It lies at an approximate distance of 7,200 light years from Earth and has an apparent magnitude of 5.9. The cluster has the designation NGC 6121 in the New General Catalogue.<br /> <span id="more-89"></span><br /> M4 was discovered by the Swiss astronomer and mathematician Jean-Philippe Loys de Chéseaux in 1746, who added it to his catalogue as number 19. Charles Messier catalogued the cluster on May 8, 1764. He noted, “Cluster of very small [faint] stars; with an inferior telescope, it appears more like a nebula; this cluster is situated near <a href="https://www.star-facts.com/antares/">Antares</a> & on its parallel.”</p> <p>M4 was the first and only globular cluster to be resolved into individual stars by Messier himself. Other globulars in the <a href="https://www.messier-objects.com/messier-catalogue/">Messier catalogue</a> were not resolved until about 20 years later, when William Herschel observed them in his larger telescopes.</p> <p>French astronomer Nicholas Louis de Lacaille discovered the globular cluster independently on April 13, 1752 and included it in his catalogue as Lacaille I.9, noting that “It resembles a small nucleus of a faint comet.”</p> <figure id="attachment_96" aria-describedby="caption-attachment-96" style="width: 600px" class="wp-caption aligncenter"><a href="https://www.messier-objects.com/wp-content/uploads/2015/01/Messier-4.jpg"><img fetchpriority="high" decoding="async" class="wp-image-96" src="https://www.messier-objects.com/wp-content/uploads/2015/01/Messier-4-1024x1016.jpg" alt="m4,ngc 6121,globular cluster" width="600" height="595" srcset="https://www.messier-objects.com/wp-content/uploads/2015/01/Messier-4-1024x1016.jpg 1024w, https://www.messier-objects.com/wp-content/uploads/2015/01/Messier-4-150x150.jpg 150w, https://www.messier-objects.com/wp-content/uploads/2015/01/Messier-4-300x298.jpg 300w, https://www.messier-objects.com/wp-content/uploads/2015/01/Messier-4-50x50.jpg 50w, https://www.messier-objects.com/wp-content/uploads/2015/01/Messier-4.jpg 1032w" sizes="(max-width: 600px) 100vw, 600px" /></a><figcaption id="caption-attachment-96" class="wp-caption-text">This sparkling picture taken by the NASA/ESA Hubble Space Telescope shows the centre of globular cluster M4. The power of Hubble has resolved the cluster into a multitude of glowing orbs, each a colossal nuclear furnace. M4 is relatively close to us, lying 7200 light-years distant, making it a prime object for study. It contains several tens of thousand stars and is noteworthy in being home to many white dwarfs — the cores of ancient, dying stars whose outer layers have drifted away into space. In July 2003, Hubble helped make the astounding discovery of a planet called PSR B1620-26 b, 2.5 times the mass of Jupiter, which is located in this cluster. Its age is estimated to be around 13 billion years — almost three times as old as the Solar System! It is also unusual in that it orbits a binary system of a white dwarf and a pulsar (a type of neutron star). Image: ESA/Hubble & NASA</figcaption></figure> <p>Messier 4 is one of the nearest globular clusters to Earth, along with NGC 6397, a cluster located in the constellation <a href="https://www.constellation-guide.com/constellation-list/ara-constellation/">Ara</a>, the Altar. NGC 6397 lies at approximately the same distance (7,200 light years), but is slightly fainter than M4, with a visual magnitude of 6.68. The recently discovered FSR 1767, another globular cluster in <a href="https://www.constellation-guide.com/constellation-list/scorpius-constellation/">Scorpius constellation</a>, lies even closer to Earth, at a distance of only 4,900 light years.</p> <p>Messier 4 has a density classification IX, which means that it is rather loosely concentrated. (The densest clusters are those classed I.) The cluster has an estimated age of 12.2 billion years.</p> <p>M4 has a characteristic bar structure across its central region which can be seen in a medium-sized telescope. The bar is roughly 2.5′ long and consists of 11th magnitude stars.</p> <p>The bar structure was first observed by William Herschel in 1783. Herschel’s description of M4 read, “A rich cluster of considerably compressed small stars surrounded by many straggling ones. It contains a ridge of stars running through the middle from south preceding [SW] to north following [NE]. The ridge contains 8 or 10 pretty bright stars. All the stars are red.”</p> <p>Admiral William Henry Smyth provided a more detailed description of the cluster after observing it in April 1837:</p> <blockquote><p>A compressed mass of very small stars, in the middle of the creature’s body, with outliers and a few small stellar companions in the field. The place is carefully differentiated with <a href="https://www.star-facts.com/antares/">Antares</a>; from which it is only 1deg 1/2 distant to the west. This object is elongated vertically, and has the aspect of a large, pale, granulated nebula, running up to a blaze in the centre. It was discovered by Messier in the year 1764, and duly reported in the <em>Connoissance des Temps</em>. In 1783, Sir William Herschel resolved this object into stars; and gauging it by a modification of the method which he applied to fathom the Galaxy, he concluded that his 10-foot reflector, having the power to show stars exceeding that of the eye 28.67 times, gave the profundity of this cluster of the 344th order. He describes it as having a ridge of eight or ten pretty bright stars, running from the middle to the nf [north following, NE]; a description which I found very correct.</p> <p>Under the head of 80 Messier (which see, No. DLXIV [564]), a slight allusion was made to nebulae considered in their relations to the surrounding spaces. Like that singular mass, the group before us is also situated on the western edge of an area which contains no stars, i.e., none of which we can decry; and in such spaces invariably, according to the testimony of Sir William Herschel, are nebulae found. “Let us,” says M. Arago, “connect these facts with the observation which has shown that the stars are greatly condensed towards the centre of spherical nebulae, and with that which has afforded the proof that these stars sensibly obey a certain power of condensation (or clustering power), and we shall feel disposed to admit with Herschel, that nebulae are sometimes formed by the incessant operation of a great number of ages, at the expense of the scattered stars (étoiles dispersées) which originally occupied the surrounding regions; and the existence of empty, or ravaged spaces, to use the picturesque expression of the great astronomer, will no longer present anything which ought to confound our imagination.”</p></blockquote> <p>Messier 4 is one of the easiest clusters to find in the night sky and can be seen even in small telescopes. It lies only 1.3 degrees west of <a href="https://www.star-facts.com/antares/">Antares</a>, the brightest star in <a href="https://www.constellation-guide.com/constellation-list/scorpius-constellation/">Scorpius constellation</a> and the 17th brightest star in the sky. Observers can see both the red supergiant star and the cluster in a wide field telescope.</p> <p>The best time of year to observe M4 from northern latitudes is in the summer months, when <a href="https://www.constellation-guide.com/constellation-list/scorpius-constellation/">Scorpius</a> is visible above the southern horizon in the evening. From southern latitudes, <a href="https://www.constellation-guide.com/constellation-list/scorpius-constellation/">Scorpius</a> is best seen during the months of May, June and July, when it rises high in the sky.</p> <figure id="attachment_114" aria-describedby="caption-attachment-114" style="width: 600px" class="wp-caption aligncenter"><a href="https://www.messier-objects.com/wp-content/uploads/2015/01/NGC-6121.jpg"><img decoding="async" class="wp-image-114" src="https://www.messier-objects.com/wp-content/uploads/2015/01/NGC-6121-1024x989.jpg" alt="messier 4,m4,globular cluster" width="600" height="580" srcset="https://www.messier-objects.com/wp-content/uploads/2015/01/NGC-6121-1024x989.jpg 1024w, https://www.messier-objects.com/wp-content/uploads/2015/01/NGC-6121-300x290.jpg 300w, https://www.messier-objects.com/wp-content/uploads/2015/01/NGC-6121.jpg 1060w" sizes="(max-width: 600px) 100vw, 600px" /></a><figcaption id="caption-attachment-114" class="wp-caption-text">This image from the Wide Field Imager attached to the MPG/ESO 2.2-metre telescope at ESO’s La Silla Observatory shows the spectacular globular star cluster Messier 4. This great ball of ancient stars is one of the closest of such stellar systems to the Earth and appears in the constellation of Scorpius (The Scorpion) close to the bright red star Antares. Image: ESO. Acknowledgement: ESO Imaging Survey</figcaption></figure> <p>Messier 4 has roughly the same apparent size as the full Moon. It is visible to the naked eye, but only in exceptionally good conditions. If it weren’t obscured by clouds of dark interstellar dust, the cluster would appear far brighter. In 10×50 binoculars, the core region appears quite bright and is surrounded by a halo of light. In small instruments, M4 appears as a fuzzy patch of light, while medium to large telescopes reveal individual stars and the central bar structure. The cluster’s overall spectral type is F8.</p> <p>In deep images, M4 has an angular diameter of 36 arc minutes, corresponding to 75 light years, while in regular images the cluster appears a bit smaller, at about 26 arc minutes.</p> <p>The tidal radius of M4 is estimated at 32.49′, corresponding to about 70 light years. In other words, the stars within the region of 140 light years in diameter that M4 occupies can’t escape the cluster’s gravitational influence.</p> <p>Messier 4 is relatively small and has fewer stars than other globular clusters. Some of the other bright globulars contain up to 500,000 or more stars.</p> <figure id="attachment_104" aria-describedby="caption-attachment-104" style="width: 268px" class="wp-caption alignright"><a href="https://www.messier-objects.com/wp-content/uploads/2015/01/Messier-4-stars.jpg"><img decoding="async" class="size-medium wp-image-104" src="https://www.messier-objects.com/wp-content/uploads/2015/01/Messier-4-stars-268x300.jpg" alt="m4 stars,white dwarfs" width="268" height="300" srcset="https://www.messier-objects.com/wp-content/uploads/2015/01/Messier-4-stars-268x300.jpg 268w, https://www.messier-objects.com/wp-content/uploads/2015/01/Messier-4-stars.jpg 408w" sizes="(max-width: 268px) 100vw, 268px" /></a><figcaption id="caption-attachment-104" class="wp-caption-text">White dwarfs amid Sun-like stars and red stars in globular cluster M4 by Hubble Space Telescope. Image: NASA</figcaption></figure> <p>The brightest stars in M4 have an apparent magnitude of 10.8. The cluster contains at least 65 variable stars. It is believed to host at least two distinct stellar populations, which is to say populations of stars formed at two or more different points in time. If this is the case, the cluster underwent two or more cycles of star formation. Messier 4 contains several tens of thousands of stars, but it may have been more massive and contained more stars in the past.</p> <p>The cluster has an orbit that takes it through the Milky Way’s disk, at distances less than 5,000 parsecs from the galactic nucleus. As a result, M4 undergoes tidal shock every time which, in turn, results in repeated loss of stars.</p> <p>Messier 4 is receding from us at 70.4 km/s. It has an estimated mass of 100,000 solar masses.</p> <p>Half the mass of M4 is concentrated in the cluster’s inner region, spanning 16 light years in diameter.</p> <p>Messier 4 is home to some of the oldest known stars in our galaxy. With an estimated age of 13 billion years, the white dwarf stars found in M4 in 1995 are the cores of ancient stars that lost their outer layers a long time ago.</p> <p>About 15 percent of the stars in M4 are binaries.</p> <figure id="attachment_99" aria-describedby="caption-attachment-99" style="width: 300px" class="wp-caption alignright"><a href="https://www.messier-objects.com/wp-content/uploads/2015/01/Pulsar-B1620-26.jpg"><img loading="lazy" decoding="async" class="size-medium wp-image-99" src="https://www.messier-objects.com/wp-content/uploads/2015/01/Pulsar-B1620-26-300x300.jpg" alt="psr B1620-26,messier 4,pulsar location" width="300" height="300" srcset="https://www.messier-objects.com/wp-content/uploads/2015/01/Pulsar-B1620-26-300x300.jpg 300w, https://www.messier-objects.com/wp-content/uploads/2015/01/Pulsar-B1620-26-150x150.jpg 150w, https://www.messier-objects.com/wp-content/uploads/2015/01/Pulsar-B1620-26-50x50.jpg 50w, https://www.messier-objects.com/wp-content/uploads/2015/01/Pulsar-B1620-26.jpg 704w" sizes="auto, (max-width: 300px) 100vw, 300px" /></a><figcaption id="caption-attachment-99" class="wp-caption-text">Hubble Space Telescope image of the location of the pulsar B1620-26, which is orbited by both a white dwarf and a Jupiter-sized planet. Credit: NASA and H. Richer (University of British Columbia).</figcaption></figure> <p>In a recent survey of the cluster, one of the stars was discovered to have an unusually large amount of lithium, an element that is usually destroyed over a star’s lifetime.</p> <p>The unusual star has either retained its original lithium or produced a new supply. The source of the element is still unclear.</p> <p>In July 2003, astronomers discovered a planet in the cluster. The planet has 2.5 times the mass of Jupiter and orbits a binary star system consisting of a white dwarf and a pulsar (rapidly rotating neutron star).</p> <p>The binary system, designated PSR B1620-26 lies at a distance of 12,400 light years from Earth, just outside M4’s core region.</p> <p>The planet, PSR B1620-26 b, has the unofficial nicknames “the Genesis planet” and “Methuselah” because it is believed to be 12.7 billion years old.</p> <p>It is one of the oldest extrasolar planets known, roughly three times the age of our solar system.</p> <p>A millisecond pulsar, PSR 1821-24, was discovered in Messier 4 in 1987. It has a period of 3 milliseconds, which is roughly 10 times faster than the Crab Pulsar in <a href="https://www.messier-objects.com/messier-1-crab-nebula/">Messier 1</a>.</p> <figure id="attachment_112" aria-describedby="caption-attachment-112" style="width: 600px" class="wp-caption aligncenter"><a href="https://www.messier-objects.com/wp-content/uploads/2015/01/Genesis-planet.jpg"><img loading="lazy" decoding="async" class="wp-image-112" src="https://www.messier-objects.com/wp-content/uploads/2015/01/Genesis-planet.jpg" alt="methuselah,psr b1620-26,neutron star" width="600" height="393" srcset="https://www.messier-objects.com/wp-content/uploads/2015/01/Genesis-planet.jpg 800w, https://www.messier-objects.com/wp-content/uploads/2015/01/Genesis-planet-300x197.jpg 300w" sizes="auto, (max-width: 600px) 100vw, 600px" /></a><figcaption id="caption-attachment-112" class="wp-caption-text">Evolution of PSR B1620-26. Image: NASA and A. Feild (STScI)</figcaption></figure> <h3 style="text-align: center;">FACTS</h3> <table> <tbody> <tr> <td width="619"><strong>Object: Cluster </strong></td> </tr> <tr> <td width="619"><strong>Type: Globular </strong></td> </tr> <tr> <td width="619"><strong>Class: IX </strong></td> </tr> <tr> <td width="619"><strong>Designations: Messier 4, M4, NGC 6121 </strong></td> </tr> <tr> <td width="619"><strong>Features: Proximity to the bright red supergiant Antares </strong></td> </tr> <tr> <td width="619"><strong>Constellation: <a href="https://www.constellation-guide.com/constellation-list/scorpius-constellation/">Scorpius</a> </strong></td> </tr> <tr> <td width="619"><strong>Right ascension: 16h 23m 35.22s </strong></td> </tr> <tr> <td width="619"><strong>Declination: -26°31’32.7” </strong></td> </tr> <tr> <td width="619"><strong>Distance: 7,200 light years (2,200 parsecs) </strong></td> </tr> <tr> <td width="619"><strong>Age: 12.2 billion years </strong></td> </tr> <tr> <td width="619"><strong>Number of stars: >20,000 </strong></td> </tr> <tr> <td width="619"><strong>Apparent magnitude: +5.9</strong></td> </tr> <tr> <td width="619"><strong>Apparent dimensions: 26′ </strong></td> </tr> <tr> <td width="619"><strong>Radius: 35 light years </strong></td> </tr> <tr> <td width="619"><strong>Tidal radius: 70 light years </strong></td> </tr> </tbody> </table> <h3 style="text-align: center;">LOCATION</h3> <figure id="attachment_102" aria-describedby="caption-attachment-102" style="width: 600px" class="wp-caption aligncenter"><a href="https://www.messier-objects.com/wp-content/uploads/2015/01/Messier-4-location.png"><img loading="lazy" decoding="async" class="wp-image-102" src="https://www.messier-objects.com/wp-content/uploads/2015/01/Messier-4-location-828x1024.png" alt="find messier 4,messier 4 map,scorpius map" width="600" height="742" srcset="https://www.messier-objects.com/wp-content/uploads/2015/01/Messier-4-location.png 828w, https://www.messier-objects.com/wp-content/uploads/2015/01/Messier-4-location-243x300.png 243w" sizes="auto, (max-width: 600px) 100vw, 600px" /></a><figcaption id="caption-attachment-102" class="wp-caption-text">Messier 4 location. Image: IAU and Sky & Telescope magazine (Roger Sinnott & Rick Fienberg)</figcaption></figure> <h3 style="text-align: center;">IMAGES</h3> <figure id="attachment_108" aria-describedby="caption-attachment-108" style="width: 600px" class="wp-caption aligncenter"><a href="https://www.messier-objects.com/wp-content/uploads/2015/01/M4.jpg"><img loading="lazy" decoding="async" class="wp-image-108" src="https://www.messier-objects.com/wp-content/uploads/2015/01/M4-1024x679.jpg" alt="messier 4,globular cluster" width="600" height="398" srcset="https://www.messier-objects.com/wp-content/uploads/2015/01/M4-1024x679.jpg 1024w, https://www.messier-objects.com/wp-content/uploads/2015/01/M4-300x199.jpg 300w, https://www.messier-objects.com/wp-content/uploads/2015/01/M4.jpg 1100w" sizes="auto, (max-width: 600px) 100vw, 600px" /></a><figcaption id="caption-attachment-108" class="wp-caption-text">Messier 4 in Scorpius. Image: Hewholooks at wikipedia.org</figcaption></figure> <figure id="attachment_109" aria-describedby="caption-attachment-109" style="width: 600px" class="wp-caption aligncenter"><a href="https://www.messier-objects.com/wp-content/uploads/2015/01/Messier-4-Hubble.jpg"><img loading="lazy" decoding="async" class="wp-image-109" src="https://www.messier-objects.com/wp-content/uploads/2015/01/Messier-4-Hubble.jpg" alt="m4 hubble image,ngc 6121" width="600" height="600" srcset="https://www.messier-objects.com/wp-content/uploads/2015/01/Messier-4-Hubble.jpg 1000w, https://www.messier-objects.com/wp-content/uploads/2015/01/Messier-4-Hubble-150x150.jpg 150w, https://www.messier-objects.com/wp-content/uploads/2015/01/Messier-4-Hubble-300x300.jpg 300w, https://www.messier-objects.com/wp-content/uploads/2015/01/Messier-4-Hubble-50x50.jpg 50w" sizes="auto, (max-width: 600px) 100vw, 600px" /></a><figcaption id="caption-attachment-109" class="wp-caption-text">Globular star cluster M4, NGC 6121. Image: NASA</figcaption></figure> <figure id="attachment_111" aria-describedby="caption-attachment-111" style="width: 600px" class="wp-caption aligncenter"><a href="https://www.messier-objects.com/wp-content/uploads/2015/01/Messier-4-and-Antares.jpg"><img loading="lazy" decoding="async" class="wp-image-111" src="https://www.messier-objects.com/wp-content/uploads/2015/01/Messier-4-and-Antares-1024x797.jpg" alt="antares,messier 4,m4" width="600" height="467" srcset="https://www.messier-objects.com/wp-content/uploads/2015/01/Messier-4-and-Antares-1024x797.jpg 1024w, https://www.messier-objects.com/wp-content/uploads/2015/01/Messier-4-and-Antares-300x233.jpg 300w, https://www.messier-objects.com/wp-content/uploads/2015/01/Messier-4-and-Antares.jpg 1280w" sizes="auto, (max-width: 600px) 100vw, 600px" /></a><figcaption id="caption-attachment-111" class="wp-caption-text">Antares, 22 Scorpii, IC 4605, NGC 6144, M4, Al Niyat – taken with a Canon ESD 20D and ad an adapted Pentacon Six line Carl Zeiss Jena Sonnar 2.8/180 mm. 14×10 s exposures stacked with Fitswork. Taken from Andremba Village in SW Madagascar. Image: AsperaAT at wikipedia.org</figcaption></figure> </div><div class="nv-tags-list"><span>Tags:</span><a href=https://www.messier-objects.com/tag/antares/ title="Antares" class=antares rel="tag">Antares</a><a href=https://www.messier-objects.com/tag/crab-pulsar/ title="Crab Pulsar" class=crab-pulsar rel="tag">Crab Pulsar</a><a href=https://www.messier-objects.com/tag/fsr-1767/ title="FSR 1767" class=fsr-1767 rel="tag">FSR 1767</a><a href=https://www.messier-objects.com/tag/genesis-planet/ title="Genesis Planet" class=genesis-planet rel="tag">Genesis Planet</a><a href=https://www.messier-objects.com/tag/jean-philippe-loys-de-cheseaux/ title="Jean-Philippe Loys de Chéseaux" class=jean-philippe-loys-de-cheseaux rel="tag">Jean-Philippe Loys de Chéseaux</a><a href=https://www.messier-objects.com/tag/lacaille-i-9/ title="Lacaille I.9" class=lacaille-i-9 rel="tag">Lacaille I.9</a><a href=https://www.messier-objects.com/tag/m4/ title="M4" class=m4 rel="tag">M4</a><a href=https://www.messier-objects.com/tag/messier-4/ title="Messier 4" class=messier-4 rel="tag">Messier 4</a><a href=https://www.messier-objects.com/tag/methuselah/ title="Methuselah" class=methuselah rel="tag">Methuselah</a><a href=https://www.messier-objects.com/tag/ngc-6121/ title="NGC 6121" class=ngc-6121 rel="tag">NGC 6121</a><a href=https://www.messier-objects.com/tag/ngc-6397/ title="NGC 6397" class=ngc-6397 rel="tag">NGC 6397</a><a href=https://www.messier-objects.com/tag/nicolas-louis-de-lacaille/ title="Nicolas Louis de Lacaille" class=nicolas-louis-de-lacaille rel="tag">Nicolas Louis de Lacaille</a><a href=https://www.messier-objects.com/tag/psr-1821-24/ title="PSR 1821-24" class=psr-1821-24 rel="tag">PSR 1821-24</a><a href=https://www.messier-objects.com/tag/psr-b1620-26/ title="PSR B1620-26" class=psr-b1620-26 rel="tag">PSR B1620-26</a><a href=https://www.messier-objects.com/tag/scorpius-constellation/ title="Scorpius Constellation" class=scorpius-constellation rel="tag">Scorpius Constellation</a><a href=https://www.messier-objects.com/tag/william-henry-smyth/ title="William Henry Smyth" class=william-henry-smyth rel="tag">William Henry Smyth</a><a href=https://www.messier-objects.com/tag/william-herschel/ title="William Herschel" class=william-herschel rel="tag">William Herschel</a> </div> <div id="comments" class="comments-area"> </div> </article> <div class="nv-sidebar-wrap col-sm-12 nv-right blog-sidebar" > <aside id="secondary" role="complementary"> <div id="text-3" class="widget widget_text"> <div class="textwidget"> <script async src="//pagead2.googlesyndication.com/pagead/js/adsbygoogle.js"></script> <ins class="adsbygoogle" style="display:block" data-ad-client="ca-pub-0663561204264333" data-ad-slot="7505940549" data-ad-format="auto"></ins> <script> (adsbygoogle = window.adsbygoogle || []).push({}); </script> </div> </div><div id="text-2" class="widget widget_text"><p class="widget-title">Messier Objects</p> <div class="textwidget"><p><a href="https://www.messier-objects.com/messier-1-crab-nebula/">Messier 1: Crab Nebula</a><br /> <a href="https://www.messier-objects.com/messier-2/">Messier 2</a><br /> <a href="https://www.messier-objects.com/messier-3/">Messier 3</a><br /> <a href="https://www.messier-objects.com/messier-4/">Messier 4</a><br /> <a href="https://www.messier-objects.com/messier-5/">Messier 5</a><br /> <a href="https://www.messier-objects.com/messier-6-butterfly-cluster/">Messier 6: Butterfly Cluster</a><br /> <a href="https://www.messier-objects.com/messier-7-ptolemys-cluster/">Messier 7: Ptolemy Cluster</a><br /> <a href="https://www.messier-objects.com/messier-8-lagoon-nebula/">Messier 8: Lagoon Nebula</a><br /> <a href="https://www.messier-objects.com/messier-9/">Messier 9</a><br /> <a href="https://www.messier-objects.com/messier-10/">Messier 10</a><br /> <a href="https://www.messier-objects.com/messier-11-wild-duck-cluster/">Messier 11: Wild Duck Cluster</a><br /> <a href="https://www.messier-objects.com/messier-12-gumball-globular/">Messier 12: Gumball Globular</a><br /> <a href="https://www.messier-objects.com/messier-13-hercules-globular-cluster/">Messier 13: Hercules Globular Cluster</a><br /> <a href="https://www.messier-objects.com/messier-14/">Messier 14</a><br /> <a href="https://www.messier-objects.com/messier-15-great-pegasus-cluster/">Messier 15: Great Pegasus Cluster</a><br /> <a href="https://www.messier-objects.com/messier-16-eagle-nebula/">Messier 16: Eagle Nebula</a><br /> * <a href="https://www.messier-objects.com/pillars-of-creation/">Pillars of Creation</a><br /> <a href="https://www.messier-objects.com/messier-17-omega-nebula/">Messier 17: Omega Nebula</a><br /> <a href="https://www.messier-objects.com/messier-18/">Messier 18</a><br /> <a href="https://www.messier-objects.com/messier-19/">Messier 19</a><br /> <a href="https://www.messier-objects.com/messier-20-trifid-nebula/">Messier 20: Trifid Nebula</a><br /> <a href="https://www.messier-objects.com/messier-21/">Messier 21</a><br /> <a href="https://www.messier-objects.com/messier-22-sagittarius-cluster/">Messier 22: Sagittarius Cluster</a><br /> <a href="https://www.messier-objects.com/messier-23/">Messier 23</a><br /> <a href="https://www.messier-objects.com/messier-24-sagittarius-star-cloud/">Messier 24: Sagittarius Star Cloud</a><br /> <a href="https://www.messier-objects.com/messier-25/">Messier 25</a><br /> <a href="https://www.messier-objects.com/messier-26/">Messier 26</a><br /> <a href="https://www.messier-objects.com/messier-27-dumbbell-nebula/">Messier 27: Dumbbell Nebula</a><br /> <a href="https://www.messier-objects.com/messier-28/">Messier 28</a><br /> <a href="https://www.messier-objects.com/messier-29/">Messier 29</a><br /> <a href="https://www.messier-objects.com/messier-30/">Messier 30</a><br /> <a href="https://www.messier-objects.com/messier-31-andromeda-galaxy/">Messier 31: Andromeda Galaxy</a><br /> * <a href="https://www.messier-objects.com/mayall-ii/">Mayall II</a><br /> <a href="https://www.messier-objects.com/messier-32-le-gentil/">Messier 32: Le Gentil</a><br /> <a href="https://www.messier-objects.com/messier-33-triangulum-galaxy/">Messier 33: Triangulum Galaxy</a><br /> <a href="https://www.messier-objects.com/messier-34/">Messier 34</a><br /> <a href="https://www.messier-objects.com/messier-35/">Messier 35</a><br /> <a href="https://www.messier-objects.com/messier-36-pinwheel-cluster/">Messier 36: Pinwheel Cluster</a><br /> <a href="https://www.messier-objects.com/messier-37/">Messier 37</a><br /> <a href="https://www.messier-objects.com/messier-38-starfish-cluster/">Messier 38: Starfish Cluster</a><br /> <a href="https://www.messier-objects.com/messier-39/">Messier 39</a><br /> <a href="https://www.messier-objects.com/messier-40-winnecke-4/">Messier 40: Winnecke 4</a><br /> <a href="https://www.messier-objects.com/messier-41/">Messier 41</a><br /> <a href="https://www.messier-objects.com/messier-42-orion-nebula/">Messier 42: Orion Nebula</a><br /> * <a href="https://www.messier-objects.com/trapezium-cluster/">Trapezium Cluster</a><br /> <a href="https://www.messier-objects.com/messier-43-de-mairans-nebula/">Messier 43: De Mairan's Nebula</a><br /> <a href="https://www.messier-objects.com/messier-44-beehive-cluster/">Messier 44: Beehive Cluster</a><br /> <a href="https://www.messier-objects.com/messier-45-pleiades/">Messier 45: Pleiades</a><br /> * <a href="https://www.messier-objects.com/maia-nebula/">Maia Nebula</a><br /> * <a href="https://www.messier-objects.com/merope-nebula/">Merope Nebula</a><br /> <a href="https://www.messier-objects.com/messier-46/">Messier 46</a><br /> <a href="https://www.messier-objects.com/messier-47/">Messier 47</a><br /> <a href="https://www.messier-objects.com/messier-48/">Messier 48</a><br /> <a href="https://www.messier-objects.com/messier-49/">Messier 49</a><br /> <a href="https://www.messier-objects.com/messier-50-heart-shaped-cluster/">Messier 50: Heart-Shaped Cluster</a><br /> <a href="https://www.messier-objects.com/messier-51-whirlpool-galaxy/">Messier 51: Whirlpool Galaxy</a><br /> <a href="https://www.messier-objects.com/messier-52/">Messier 52</a><br /> <a href="https://www.messier-objects.com/messier-53/">Messier 53</a><br /> <a href="https://www.messier-objects.com/messier-54/">Messier 54</a><br /> <a href="https://www.messier-objects.com/messier-55-summer-rose-star/">Messier 55: Summer Rose Star</a><br /> <a href="https://www.messier-objects.com/messier-56/">Messier 56</a><br /> <a href="https://www.messier-objects.com/messier-57-ring-nebula/">Messier 57: Ring Nebula</a><br /> <a href="https://www.messier-objects.com/messier-58/">Messier 58</a><br /> <a href="https://www.messier-objects.com/messier-59/">Messier 59</a><br /> <a href="https://www.messier-objects.com/messier-60/">Messier 60</a><br /> <a href="https://www.messier-objects.com/messier-61/">Messier 61</a><br /> <a href="https://www.messier-objects.com/messier-62/">Messier 62</a><br /> <a href="https://www.messier-objects.com/messier-63-sunflower-galaxy/">Messier 63: Sunflower Galaxy</a><br /> <a href="https://www.messier-objects.com/messier-64-black-eye-galaxy/">Messier 64: Black Eye Galaxy</a><br /> * <a href="https://www.messier-objects.com/leo-triplet/">Leo Triplet</a><br /> <a href="https://www.messier-objects.com/messier-65/">Messier 65</a><br /> <a href="https://www.messier-objects.com/messier-66/">Messier 66</a><br /> * <a href="https://www.messier-objects.com/ngc-3628-hamburger-galaxy/">NGC 3628: Hamburger Galaxy</a><br /> <a href="https://www.messier-objects.com/messier-67-king-cobra-cluster/">Messier 67: King Cobra Cluster</a><br /> <a href="https://www.messier-objects.com/messier-68/">Messier 68</a><br /> <a href="https://www.messier-objects.com/messier-69/">Messier 69</a><br /> <a href="https://www.messier-objects.com/messier-70/">Messier 70</a><br /> <a href="https://www.messier-objects.com/messier-71/">Messier 71</a><br /> <a href="https://www.messier-objects.com/messier-72/">Messier 72</a><br /> <a href="https://www.messier-objects.com/messier-73/">Messier 73</a><br /> <a href="https://www.messier-objects.com/messier-74-phantom-galaxy/">Messier 74: Phantom Galaxy</a><br /> <a href="https://www.messier-objects.com/messier-75/">Messier 75</a><br /> <a href="https://www.messier-objects.com/messier-76-little-dumbbell-nebula/">Messier 76: Little Dumbbell Nebula</a><br /> <a href="https://www.messier-objects.com/messier-77-cetus-a/">Messier 77: Cetus A</a><br /> <a href="https://www.messier-objects.com/messier-78/">Messier 78</a><br /> <a href="https://www.messier-objects.com/messier-79/">Messier 79</a><br /> <a href="https://www.messier-objects.com/messier-80/">Messier 80</a><br /> <a href="https://www.messier-objects.com/messier-81-bodes-galaxy/">Messier 81: Bode's Galaxy</a><br /> <a href="https://www.messier-objects.com/messier-82-cigar-galaxy/">Messier 82: Cigar Galaxy</a><br /> <a href="https://www.messier-objects.com/messier-83-southern-pinwheel-galaxy/">Messier 83: Southern Pinwheel Galaxy</a><br /> <a href="https://www.messier-objects.com/messier-84/">Messier 84</a><br /> <a href="https://www.messier-objects.com/messier-85/">Messier 85</a><br /> <a href="https://www.messier-objects.com/messier-86/">Messier 86</a><br /> <a href="https://www.messier-objects.com/messier-87-virgo-a/">Messier 87: Virgo A</a><br /> <a href="https://www.messier-objects.com/messier-88/">Messier 88</a><br /> <a href="https://www.messier-objects.com/messier-89/">Messier 89</a><br /> <a href="https://www.messier-objects.com/messier-90/">Messier 90</a><br /> <a href="https://www.messier-objects.com/messier-91/">Messier 91</a><br /> <a href="https://www.messier-objects.com/messier-92/">Messier 92</a><br /> <a href="https://www.messier-objects.com/messier-93/">Messier 93</a><br /> <a href="https://www.messier-objects.com/messier-94-cats-eye-galaxy/">Messier 94: Cat's Eye Galaxy</a><br /> <a href="https://www.messier-objects.com/messier-95/">Messier 95</a><br /> <a href="https://www.messier-objects.com/messier-96/">Messier 96</a><br /> <a href="https://www.messier-objects.com/messier-97-owl-nebula/">Messier 97: Owl Nebula</a><br /> <a href="https://www.messier-objects.com/messier-98/">Messier 98</a><br /> <a href="https://www.messier-objects.com/messier-99-coma-pinwheel/">Messier 99: Coma Pinwheel</a><br /> <a href="https://www.messier-objects.com/messier-100/">Messier 100</a><br /> <a href="https://www.messier-objects.com/messier-101-pinwheel-galaxy/">Messier 101: Pinwheel Galaxy</a><br /> <a href="https://www.messier-objects.com/messier-102-spindle-galaxy/">Messier 102: Spindle Galaxy</a><br /> <a href="https://www.messier-objects.com/messier-103/">Messier 103</a><br /> <a 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