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style="text-align: center; margin-left:auto; margin-right:auto"><span typeof="mw:File"><a href="/wiki/File:SDSS_J102915_172927.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/1/1d/SDSS_J102915_172927.jpg/250px-SDSS_J102915_172927.jpg" decoding="async" width="250" height="250" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/1/1d/SDSS_J102915_172927.jpg/375px-SDSS_J102915_172927.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/1/1d/SDSS_J102915_172927.jpg/500px-SDSS_J102915_172927.jpg 2x" data-file-width="929" data-file-height="929" /></a></span><br />SDSS J102915 172927 as seen by ESO - VLT</div></td></tr> <tr> <th style="text-align: center; background-color: #FFFFC0;" colspan="2">Observation data<br /><a href="/wiki/Epoch_(astronomy)" title="Epoch (astronomy)">Epoch</a> <a href="/wiki/J2000.0" class="mw-redirect" title="J2000.0">J2000.0</a>      <a href="/wiki/Equinox_(celestial_coordinates)" title="Equinox (celestial coordinates)">Equinox</a> <a href="/wiki/J2000.0" class="mw-redirect" title="J2000.0">J2000.0</a> </th></tr> <tr style="vertical-align:top"> <th style="text-align:left"><a href="/wiki/Constellation" title="Constellation">Constellation</a> </th> <td><a href="/wiki/Leo_(constellation)" title="Leo (constellation)">Leo</a> </td></tr> <tr style="vertical-align:top"> <th style="text-align:left"><span class="nowrap"><a href="/wiki/Right_ascension" title="Right ascension">Right ascension</a></span> </th> <td><span class="nowrap">10<sup>h</sup> 29<sup>m</sup> 15.1490<sup>s</sup></span><sup id="cite_ref-Gaia_DR3_1-0" class="reference"><a href="#cite_note-Gaia_DR3-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> </td></tr> <tr style="vertical-align:top"> <th style="text-align:left"><a href="/wiki/Declination" title="Declination">Declination</a> </th> <td>+17° 29′ 27.925″<sup id="cite_ref-Gaia_DR3_1-1" class="reference"><a href="#cite_note-Gaia_DR3-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> </td></tr> <tr style="vertical-align:top"> <th style="text-align:left"><span class="nowrap"><a href="/wiki/Apparent_magnitude" title="Apparent magnitude">Apparent magnitude</a> (V)</span> </th> <td>+16.92 </td></tr> <tr> <th style="background-color: #FFFFC0; text-align: center;" colspan="2">Characteristics </th></tr> <tr style="vertical-align:top"> <th style="text-align:left">B−V <a href="/wiki/Color_index" title="Color index">color index</a> </th> <td>0.03<sup id="cite_ref-Gaia_DR2_2-0" class="reference"><a href="#cite_note-Gaia_DR2-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup> </td></tr> <tr><th style="background-color: #FFFFC0; text-align: center;" colspan="2"><a href="/wiki/Astrometry" title="Astrometry">Astrometry</a></th></tr><tr><th colspan="2" style="text-align: center"></th></tr><tr style="vertical-align:top;"><td><b><a href="/wiki/Proper_motion" title="Proper motion">Proper motion</a> (μ)</b></td><td> <abbr title="Right Ascension">RA:</abbr> <span class="nowrap"><span data-sort-value="2998892800000000000♠"></span>−10.720(63)</span> <a href="/wiki/Milliarcsecond" class="mw-redirect" title="Milliarcsecond">mas</a>/<a href="/wiki/Year" title="Year">yr</a><sup id="cite_ref-Gaia_DR3_1-2" class="reference"><a href="#cite_note-Gaia_DR3-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> <br /> <abbr title="Declination">Dec.:</abbr> <span class="nowrap"><span data-sort-value="2999607900000000000♠"></span>−3.921(54)</span> <a href="/wiki/Milliarcsecond" class="mw-redirect" title="Milliarcsecond">mas</a>/<a href="/wiki/Year" title="Year">yr</a><sup id="cite_ref-Gaia_DR3_1-2" class="reference"><a href="#cite_note-Gaia_DR3-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup> </td></tr><tr style="vertical-align:top;"><td><b><a href="/wiki/Stellar_parallax" title="Stellar parallax">Parallax</a> (π)</b></td><td>0.6482 ± 0.0598 <a href="/wiki/Milliarcsecond" class="mw-redirect" title="Milliarcsecond">mas</a><sup id="cite_ref-Gaia_DR3_1-3" class="reference"><a href="#cite_note-Gaia_DR3-1"><span class="cite-bracket">[</span>1<span class="cite-bracket">]</span></a></sup></td></tr><tr style="vertical-align:top;"><td><b><a href="/wiki/Distance_(astronomy)" class="mw-redirect" title="Distance (astronomy)">Distance</a></b></td><td>5,000 ± 500 <a href="/wiki/Light-year" title="Light-year">ly</a> <br />(1,500 ± 100 <a href="/wiki/Parsec" title="Parsec">pc</a>)</td></tr><tr><th colspan="2" style="text-align: center"></th></tr> <tr><th style="background-color: #FFFFC0; text-align: center;" colspan="2">Details</th></tr><tr><th colspan="2" style="text-align: center"></th></tr><tr style="vertical-align:baseline;"><td><b><a href="/wiki/Stellar_mass" title="Stellar mass">Mass</a></b></td><td>≤ 0.8 <a href="/wiki/Solar_mass" title="Solar mass"><var>M</var><sub>☉</sub></a></td></tr><tr style="vertical-align:baseline;"><td><b><a href="/wiki/Effective_temperature" title="Effective temperature">Temperature</a></b></td><td>5811<sup id="cite_ref-Gaia_DR2_2-1" class="reference"><a href="#cite_note-Gaia_DR2-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup> <a href="/wiki/Kelvin" title="Kelvin">K</a></td></tr><tr style="vertical-align:baseline;"><td><b><a href="/wiki/Metallicity" title="Metallicity">Metallicity</a></b></td><td>≤ <span class="nowrap"><span data-sort-value="6993690000000000000♠"></span>6.9<span style="margin-left:0.25em;margin-right:0.15em;">×</span>10<sup>−7</sup></span><sup id="cite_ref-Gaia_DR2_2-2" class="reference"><a href="#cite_note-Gaia_DR2-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup></td></tr><tr><th colspan="2" style="text-align: center"></th></tr> <tr><th style="background-color: #FFFFC0; text-align: center;" colspan="2"><a href="/wiki/Star_catalogue" title="Star catalogue">Other designations</a></th></tr><tr><td colspan="2"><div style="width: 250px;"> 2MASS J10291514+1729278 </div></td></tr> <tr><th style="background-color: #FFFFC0; text-align: center;" colspan="2">Database references</th></tr><tr style="vertical-align: top;"><td><b><a href="/wiki/SIMBAD" title="SIMBAD">SIMBAD</a></b></td><td><a rel="nofollow" class="external text" href="https://simbad.cds.unistra.fr/simbad/sim-id?Ident=UCAC3+215-112497">data</a></td></tr> </tbody></table> <p><b>SDSS J102915+172927</b> or <b>Caffau's Star</b> is a population II <a href="/wiki/Star" title="Star">star</a> in the <a href="/wiki/Galactic_halo" title="Galactic halo">galactic halo</a>, seen in the constellation <a href="/wiki/Leo_(constellation)" title="Leo (constellation)">Leo</a>. It is about 13 billion years old, making it one of the oldest stars in the Galaxy.<sup id="cite_ref-3" class="reference"><a href="#cite_note-3"><span class="cite-bracket">[</span>3<span class="cite-bracket">]</span></a></sup> At the time of its discovery, it had the lowest <a href="/wiki/Metallicity" title="Metallicity">metallicity</a> of any known star.<sup id="cite_ref-autogenerated1_4-0" class="reference"><a href="#cite_note-autogenerated1-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup> It is small (less than 0.8 <a href="/wiki/Solar_mass" title="Solar mass">solar masses</a>),<sup id="cite_ref-schneider1_5-0" class="reference"><a href="#cite_note-schneider1-5"><span class="cite-bracket">[</span>5<span class="cite-bracket">]</span></a></sup> deficient in <a href="/wiki/Carbon" title="Carbon">carbon</a>, <a href="/wiki/Nitrogen" title="Nitrogen">nitrogen</a>, <a href="/wiki/Oxygen" title="Oxygen">oxygen</a>, and completely devoid of <a href="/wiki/Lithium" title="Lithium">lithium</a>. Because carbon and oxygen provide a <a href="/wiki/Interstellar_medium#Cooling_mechanisms" title="Interstellar medium">fine structure cooling</a> mechanism that is critical in the formation of low-mass stars, the origins of Caffau's Star are somewhat mysterious. It has been suggested, both for theoretical and observational reasons, that the formation of low-mass stars in the <a href="/wiki/Interstellar_medium" title="Interstellar medium">interstellar medium</a> requires a critical metallicity somewhere between 1.5×10<sup>−8</sup> and 1.5×10<sup>−6</sup>.<sup id="cite_ref-caffau67_6-0" class="reference"><a href="#cite_note-caffau67-6"><span class="cite-bracket">[</span>6<span class="cite-bracket">]</span></a></sup> </p><p>The metallicity of Caffau's Star is less than 6.9×10<sup>−7</sup>.<sup id="cite_ref-caffau67_6-1" class="reference"><a href="#cite_note-caffau67-6"><span class="cite-bracket">[</span>6<span class="cite-bracket">]</span></a></sup> According to Schneider et al., cooling by dust rather than the fine structure lines of CII and OI may have enabled the creation of such low-mass, metal-poor stars in the early universe.<sup id="cite_ref-schneider1_5-1" class="reference"><a href="#cite_note-schneider1-5"><span class="cite-bracket">[</span>5<span class="cite-bracket">]</span></a></sup><sup id="cite_ref-doyle1_7-0" class="reference"><a href="#cite_note-doyle1-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup> The absence of lithium implies past temperatures of at least two million <a href="/wiki/Kelvin" title="Kelvin">kelvins</a>.<sup id="cite_ref-caffau67_6-2" class="reference"><a href="#cite_note-caffau67-6"><span class="cite-bracket">[</span>6<span class="cite-bracket">]</span></a></sup> </p><p>Data from <a href="/wiki/Gaia_(spacecraft)" title="Gaia (spacecraft)">Gaia</a>'s DR2 released in 2018 confirmed that SDSS J102915+172927 is a <a href="/wiki/Dwarf_star" title="Dwarf star">dwarf star</a>.<sup id="cite_ref-Gaia_DR2_2-3" class="reference"><a href="#cite_note-Gaia_DR2-2"><span class="cite-bracket">[</span>2<span class="cite-bracket">]</span></a></sup> </p><p>The star was described by <a href="/wiki/Elisabetta_Caffau" title="Elisabetta Caffau">Elisabetta Caffau</a> et al. in an article published by the journal <i><a href="/wiki/Nature_(journal)" title="Nature (journal)">Nature</a></i> in September 2011. Caffau had been searching for extremely metal-poor stars for the past ten years.<sup id="cite_ref-8" class="reference"><a href="#cite_note-8"><span class="cite-bracket">[</span>8<span class="cite-bracket">]</span></a></sup> It was identified by automated software which analyzed data from the <a href="/wiki/Sloan_Digital_Sky_Survey" title="Sloan Digital Sky Survey">Sloan Digital Sky Survey</a>. This was followed up by observations with the X-shooter and UVES instruments on the <a href="/wiki/Very_Large_Telescope" title="Very Large Telescope">Very Large Telescope</a> in Chile.<sup id="cite_ref-autogenerated1_4-1" class="reference"><a href="#cite_note-autogenerated1-4"><span class="cite-bracket">[</span>4<span class="cite-bracket">]</span></a></sup> As of 2011<sup class="plainlinks noexcerpt noprint asof-tag update" style="display:none;"><a class="external text" href="https://en.wikipedia.org/w/index.php?title=SDSS_J102915%2B172927&action=edit">[update]</a></sup> Caffau and her team expect to find between five and fifty similar stars with the telescope in the future.<sup id="cite_ref-doyle1_7-1" class="reference"><a href="#cite_note-doyle1-7"><span class="cite-bracket">[</span>7<span class="cite-bracket">]</span></a></sup><sup class="noprint Inline-Template" style="margin-left:0.1em; white-space:nowrap;">[<i><a href="/wiki/Wikipedia:Manual_of_Style/Dates_and_numbers#Chronological_items" title="Wikipedia:Manual of Style/Dates and numbers"><span title="The text near this tag is dated. (January 2019)">needs update</span></a></i>]</sup> </p> <div class="mw-heading mw-heading2"><h2 id="See_also">See also</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=SDSS_J102915%2B172927&action=edit&section=1" title="Edit section: See also"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <ul><li><a href="/wiki/Nucleosynthesis" title="Nucleosynthesis">Nucleosynthesis</a></li> <li><a href="/wiki/Spite_plateau" title="Spite plateau">Spite plateau</a></li> <li><a href="/wiki/List_of_stars_in_Leo" title="List of stars in Leo">List of stars in Leo</a></li></ul> <dl><dt>Ultra low metallicity / ultra metal poor stars</dt></dl> <ul><li><a href="/wiki/Cayrel%27s_Star" title="Cayrel's Star">Cayrel's Star</a></li> <li><a href="/wiki/HE_0107-5240" title="HE 0107-5240">HE 0107-5240</a></li> <li><a href="/wiki/HE_1327-2326" title="HE 1327-2326">HE 1327-2326</a></li></ul> <div class="mw-heading mw-heading2"><h2 id="References">References</h2><span class="mw-editsection"><span class="mw-editsection-bracket">[</span><a href="/w/index.php?title=SDSS_J102915%2B172927&action=edit&section=2" title="Edit section: References"><span>edit</span></a><span class="mw-editsection-bracket">]</span></span></div> <style data-mw-deduplicate="TemplateStyles:r1239543626">.mw-parser-output .reflist{margin-bottom:0.5em;list-style-type:decimal}@media screen{.mw-parser-output .reflist{font-size:90%}}.mw-parser-output .reflist .references{font-size:100%;margin-bottom:0;list-style-type:inherit}.mw-parser-output .reflist-columns-2{column-width:30em}.mw-parser-output .reflist-columns-3{column-width:25em}.mw-parser-output .reflist-columns{margin-top:0.3em}.mw-parser-output .reflist-columns ol{margin-top:0}.mw-parser-output .reflist-columns li{page-break-inside:avoid;break-inside:avoid-column}.mw-parser-output .reflist-upper-alpha{list-style-type:upper-alpha}.mw-parser-output .reflist-upper-roman{list-style-type:upper-roman}.mw-parser-output .reflist-lower-alpha{list-style-type:lower-alpha}.mw-parser-output .reflist-lower-greek{list-style-type:lower-greek}.mw-parser-output .reflist-lower-roman{list-style-type:lower-roman}</style><div class="reflist"> <div class="mw-references-wrap"><ol class="references"> <li id="cite_note-Gaia_DR3-1"><span class="mw-cite-backlink">^ <a href="#cite_ref-Gaia_DR3_1-0"><sup><i><b>a</b></i></sup></a> <a href="#cite_ref-Gaia_DR3_1-1"><sup><i><b>b</b></i></sup></a> <a href="#cite_ref-Gaia_DR3_1-2"><sup><i><b>c</b></i></sup></a> <a href="#cite_ref-Gaia_DR3_1-3"><sup><i><b>d</b></i></sup></a></span> <span class="reference-text"><style data-mw-deduplicate="TemplateStyles:r1238218222">.mw-parser-output cite.citation{font-style:inherit;word-wrap:break-word}.mw-parser-output .citation q{quotes:"\"""\"""'""'"}.mw-parser-output .citation:target{background-color:rgba(0,127,255,0.133)}.mw-parser-output .id-lock-free.id-lock-free a{background:url("//upload.wikimedia.org/wikipedia/commons/6/65/Lock-green.svg")right 0.1em center/9px no-repeat}.mw-parser-output .id-lock-limited.id-lock-limited a,.mw-parser-output .id-lock-registration.id-lock-registration a{background:url("//upload.wikimedia.org/wikipedia/commons/d/d6/Lock-gray-alt-2.svg")right 0.1em center/9px no-repeat}.mw-parser-output .id-lock-subscription.id-lock-subscription a{background:url("//upload.wikimedia.org/wikipedia/commons/a/aa/Lock-red-alt-2.svg")right 0.1em center/9px no-repeat}.mw-parser-output .cs1-ws-icon a{background:url("//upload.wikimedia.org/wikipedia/commons/4/4c/Wikisource-logo.svg")right 0.1em center/12px no-repeat}body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-free a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-limited a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-registration a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .id-lock-subscription a,body:not(.skin-timeless):not(.skin-minerva) .mw-parser-output .cs1-ws-icon a{background-size:contain;padding:0 1em 0 0}.mw-parser-output .cs1-code{color:inherit;background:inherit;border:none;padding:inherit}.mw-parser-output .cs1-hidden-error{display:none;color:var(--color-error,#d33)}.mw-parser-output .cs1-visible-error{color:var(--color-error,#d33)}.mw-parser-output .cs1-maint{display:none;color:#085;margin-left:0.3em}.mw-parser-output .cs1-kern-left{padding-left:0.2em}.mw-parser-output .cs1-kern-right{padding-right:0.2em}.mw-parser-output .citation .mw-selflink{font-weight:inherit}@media screen{.mw-parser-output .cs1-format{font-size:95%}html.skin-theme-clientpref-night .mw-parser-output .cs1-maint{color:#18911f}}@media screen and (prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .cs1-maint{color:#18911f}}</style><cite id="CITEREFVallenariBrownPrustiDe_Bruijne2023" class="citation journal cs1">Vallenari, A.; et al. 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.mw-parser-output .navbox{display:none!important}}</style></div><div role="navigation" class="navbox" aria-labelledby="Constellation_of_Leo" style="padding:3px"><table class="nowraplinks hlist mw-collapsible autocollapse navbox-inner" style="border-spacing:0;background:transparent;color:inherit"><tbody><tr><th scope="col" class="navbox-title" colspan="2" style="text-align: center;"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1129693374"><style data-mw-deduplicate="TemplateStyles:r1239400231">.mw-parser-output .navbar{display:inline;font-size:88%;font-weight:normal}.mw-parser-output .navbar-collapse{float:left;text-align:left}.mw-parser-output .navbar-boxtext{word-spacing:0}.mw-parser-output .navbar ul{display:inline-block;white-space:nowrap;line-height:inherit}.mw-parser-output .navbar-brackets::before{margin-right:-0.125em;content:"[ "}.mw-parser-output .navbar-brackets::after{margin-left:-0.125em;content:" ]"}.mw-parser-output .navbar li{word-spacing:-0.125em}.mw-parser-output .navbar a>span,.mw-parser-output .navbar a>abbr{text-decoration:inherit}.mw-parser-output .navbar-mini abbr{font-variant:small-caps;border-bottom:none;text-decoration:none;cursor:inherit}.mw-parser-output .navbar-ct-full{font-size:114%;margin:0 7em}.mw-parser-output .navbar-ct-mini{font-size:114%;margin:0 4em}html.skin-theme-clientpref-night .mw-parser-output .navbar li a abbr{color:var(--color-base)!important}@media(prefers-color-scheme:dark){html.skin-theme-clientpref-os .mw-parser-output .navbar li a abbr{color:var(--color-base)!important}}@media print{.mw-parser-output .navbar{display:none!important}}</style><div class="navbar plainlinks hlist navbar-mini"><ul><li class="nv-view"><a href="/wiki/Template:Leo_(constellation)" title="Template:Leo (constellation)"><abbr title="View this template">v</abbr></a></li><li class="nv-talk"><a href="/wiki/Template_talk:Leo_(constellation)" title="Template talk:Leo (constellation)"><abbr title="Discuss this template">t</abbr></a></li><li class="nv-edit"><a href="/wiki/Special:EditPage/Template:Leo_(constellation)" title="Special:EditPage/Template:Leo (constellation)"><abbr title="Edit this template">e</abbr></a></li></ul></div><div id="Constellation_of_Leo" style="font-size:114%;margin:0 4em"><a href="/wiki/Leo_(constellation)" title="Leo (constellation)">Constellation of Leo</a></div></th></tr><tr><td class="navbox-abovebelow" colspan="2" style="text-align: center;"><div> <ul><li><a href="/wiki/List_of_stars_in_Leo" title="List of stars in Leo">List of stars in Leo</a></li> <li><a href="/wiki/Leo_in_Chinese_astronomy" title="Leo in Chinese astronomy">Leo in Chinese astronomy</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="text-align: center;;width:55px"><a href="/wiki/Star" title="Star">Stars</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:70px"><a href="/wiki/Bayer_designation" title="Bayer designation">Bayer</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Regulus" title="Regulus">α (Regulus)</a></li> <li><a href="/wiki/Denebola" title="Denebola">β (Denebola)</a></li> <li><a href="/wiki/Gamma_Leonis" title="Gamma Leonis">γ (Algieba)</a></li> <li><a href="/wiki/Delta_Leonis" title="Delta Leonis">δ (Zosma)</a></li> <li><a href="/wiki/Epsilon_Leonis" title="Epsilon Leonis">ε <i>(Algenubi)</i></a></li> <li><a href="/wiki/Zeta_Leonis" title="Zeta Leonis">ζ (Adhafera)</a></li> <li><a href="/wiki/Eta_Leonis" title="Eta Leonis">η</a></li> <li><a href="/wiki/Theta_Leonis" title="Theta Leonis">θ (Chertan)</a></li> <li><a href="/wiki/Iota_Leonis" title="Iota Leonis">ι</a></li> <li><a href="/wiki/Kappa_Leonis" title="Kappa Leonis">κ <i>(Al Minliar al Asad)</i></a></li> <li><a href="/wiki/Lambda_Leonis" title="Lambda Leonis">λ (Alterf)</a></li> <li><a href="/wiki/Mu_Leonis" title="Mu Leonis">μ (Rasalas)</a></li> <li><a href="/wiki/Nu_Leonis" title="Nu Leonis">ν</a></li> <li><a href="/wiki/Xi_Leonis" title="Xi Leonis">ξ</a></li> <li><a href="/wiki/Omicron_Leonis" title="Omicron Leonis">ο (Subra)</a></li> <li><a href="/wiki/Pi_Leonis" title="Pi Leonis">π</a></li> <li><a href="/wiki/Rho_Leonis" title="Rho Leonis">ρ</a></li> <li><a href="/wiki/Sigma_Leonis" title="Sigma Leonis">σ</a></li> <li><a href="/wiki/Tau_Leonis" title="Tau Leonis">τ</a></li> <li><a href="/wiki/Upsilon_Leonis" title="Upsilon Leonis">υ</a></li> <li><a href="/wiki/Phi_Leonis" title="Phi Leonis">φ</a></li> <li><a href="/wiki/Chi_Leonis" title="Chi Leonis">χ</a></li> <li><a href="/wiki/Psi_Leonis" title="Psi Leonis">ψ</a></li> <li><a href="/wiki/Omega_Leonis" title="Omega Leonis">ω</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:70px"><a href="/wiki/Flamsteed_designation" title="Flamsteed designation">Flamsteed</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/3_Leonis" class="mw-redirect" title="3 Leonis">3</a></li> <li><a href="/wiki/6_Leonis" class="mw-redirect" title="6 Leonis">6 (h)</a></li> <li><a href="/wiki/7_Leonis" class="mw-redirect" title="7 Leonis">7</a></li> <li><a href="/wiki/8_Leonis" class="mw-redirect" title="8 Leonis">8</a></li> <li><a href="/wiki/9_Leonis" class="mw-redirect" title="9 Leonis">9</a></li> <li><a href="/wiki/10_Leonis" class="mw-redirect" title="10 Leonis">10</a></li> <li><a href="/wiki/11_Leonis" class="mw-redirect" title="11 Leonis">11</a></li> <li><a href="/wiki/12_Leonis" class="mw-redirect" title="12 Leonis">12</a></li> <li><a href="/wiki/13_Leonis" class="mw-redirect" title="13 Leonis">13</a></li> <li><a href="/wiki/15_Leonis" class="mw-redirect" title="15 Leonis">15 (f)</a></li> <li><a href="/wiki/18_Leonis" class="mw-redirect" title="18 Leonis">18</a></li> <li><a href="/wiki/19_Leonis" class="mw-redirect" title="19 Leonis">19</a></li> <li><a href="/wiki/20_Leonis" class="mw-redirect" title="20 Leonis">20</a></li> <li><a href="/wiki/21_Leonis" class="mw-redirect" title="21 Leonis">21</a></li> <li><a href="/wiki/22_Leonis" class="mw-redirect" title="22 Leonis">22 (g)</a></li> <li><a href="/wiki/23_Leonis" class="mw-redirect" title="23 Leonis">23</a></li> <li><a href="/wiki/26_Leonis" class="mw-redirect" title="26 Leonis">26</a></li> <li><a href="/wiki/31_Leonis" title="31 Leonis">31 (A)</a></li> <li><a href="/wiki/33_Leonis" class="mw-redirect" title="33 Leonis">33</a></li> <li><a href="/wiki/34_Leonis" class="mw-redirect" title="34 Leonis">34</a></li> <li><a href="/wiki/35_Leonis" title="35 Leonis">35</a></li> <li><a href="/wiki/37_Leonis" class="mw-redirect" title="37 Leonis">37</a></li> <li><a href="/wiki/39_Leonis" title="39 Leonis">39</a></li> <li><a href="/wiki/40_Leonis" title="40 Leonis">40</a></li> <li><a href="/wiki/42_Leonis" class="mw-redirect" title="42 Leonis">42</a></li> <li><a href="/wiki/43_Leonis" class="mw-redirect" title="43 Leonis">43</a></li> <li><a href="/wiki/44_Leonis" class="mw-redirect" title="44 Leonis">44</a></li> <li><a href="/wiki/45_Leonis" class="mw-redirect" title="45 Leonis">45</a></li> <li><a href="/wiki/46_Leonis" class="mw-redirect" title="46 Leonis">46</a></li> <li><a href="/wiki/48_Leonis" class="mw-redirect" title="48 Leonis">48</a></li> <li><a href="/wiki/TX_Leonis" title="TX Leonis">49</a></li> <li><a href="/wiki/50_Leonis" class="mw-redirect" title="50 Leonis">50</a></li> <li><a href="/wiki/51_Leonis" class="mw-redirect" title="51 Leonis">51 (m)</a></li> <li><a href="/wiki/52_Leonis" class="mw-redirect" title="52 Leonis">52 (k)</a></li> <li><a href="/wiki/53_Leonis" class="mw-redirect" title="53 Leonis">53 (l)</a></li> <li><a href="/wiki/54_Leonis" title="54 Leonis">54</a></li> <li><a href="/wiki/55_Leonis" class="mw-redirect" title="55 Leonis">55</a></li> <li><a href="/wiki/56_Leonis" title="56 Leonis">56</a></li> <li><a href="/wiki/57_Leonis" class="mw-redirect" title="57 Leonis">57</a></li> <li><a href="/wiki/58_Leonis" title="58 Leonis">58 (d)</a></li> <li><a href="/wiki/59_Leonis" title="59 Leonis">59 (c)</a></li> <li><a href="/wiki/60_Leonis" title="60 Leonis">60 (b)</a></li> <li><a href="/wiki/61_Leonis" title="61 Leonis">61 (p<sup>2</sup>)</a></li> <li><a href="/wiki/62_Leonis" class="mw-redirect" title="62 Leonis">62 (p<sup>3</sup>)</a></li> <li><a href="/wiki/64_Leonis" class="mw-redirect" title="64 Leonis">64</a></li> <li><a href="/wiki/65_Leonis" class="mw-redirect" title="65 Leonis">65 (p<sup>4</sup>)</a></li> <li><a href="/wiki/66_Leonis" class="mw-redirect" title="66 Leonis">66</a></li> <li><a href="/wiki/67_Leonis" class="mw-redirect" title="67 Leonis">67</a></li> <li><a href="/wiki/69_Leonis" class="mw-redirect" title="69 Leonis">69 (p<sup>5</sup>)</a></li> <li><a href="/wiki/71_Leonis" class="mw-redirect" title="71 Leonis">71</a></li> <li><a href="/wiki/72_Leonis" title="72 Leonis">72</a></li> <li><a href="/wiki/73_Leonis" class="mw-redirect" title="73 Leonis">73 (n)</a></li> <li><a href="/wiki/75_Leonis" class="mw-redirect" title="75 Leonis">75</a></li> <li><a href="/wiki/76_Leonis" class="mw-redirect" title="76 Leonis">76</a></li> <li><a href="/wiki/79_Leonis" class="mw-redirect" title="79 Leonis">79</a></li> <li><a href="/wiki/80_Leonis" class="mw-redirect" title="80 Leonis">80</a></li> <li><a href="/wiki/81_Leonis" class="mw-redirect" title="81 Leonis">81</a></li> <li><a href="/wiki/82_Leonis" class="mw-redirect" title="82 Leonis">82</a></li> <li><a href="/wiki/83_Leonis" title="83 Leonis">83</a></li> <li><a href="/wiki/85_Leonis" class="mw-redirect" title="85 Leonis">85</a></li> <li><a href="/wiki/86_Leonis" class="mw-redirect" title="86 Leonis">86</a></li> <li><a href="/wiki/87_Leonis" title="87 Leonis">87 (e)</a></li> <li><a href="/wiki/88_Leonis" title="88 Leonis">88</a></li> <li><a href="/wiki/89_Leonis" title="89 Leonis">89</a></li> <li><a href="/wiki/90_Leonis" class="mw-redirect" title="90 Leonis">90</a></li> <li><a href="/wiki/92_Leonis" class="mw-redirect" title="92 Leonis">92</a></li> <li><a href="/wiki/93_Leonis" title="93 Leonis">93</a></li> <li><a href="/wiki/95_Leonis" class="mw-redirect" title="95 Leonis">95 (o)</a></li> <li><i><a href="/wiki/6_Leonis_Minoris" class="mw-redirect" title="6 Leonis Minoris">6 LMi</a></i></li> <li><i><a href="/wiki/18_Leonis_Minoris" class="mw-redirect" title="18 Leonis Minoris">18 LMi</a></i></li> <li><i><a href="/wiki/49_Leonis_Minoris" class="mw-redirect" title="49 Leonis Minoris">49 LMi</a></i></li> <li><i><a href="/wiki/52_Leonis_Minoris" class="mw-redirect" title="52 Leonis Minoris">52 LMi</a></i></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:70px"><a href="/wiki/Variable_star_designation" class="mw-redirect" title="Variable star designation">Variable</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/R_Leonis" title="R Leonis">R</a></li> <li><a href="/wiki/AD_Leonis" title="AD Leonis">AD</a></li> <li><a href="/wiki/Wolf_359" title="Wolf 359">CN</a></li> <li><a href="/wiki/CW_Leonis" title="CW Leonis">CW</a></li> <li><a href="/wiki/DP_Leonis" title="DP Leonis">DP</a></li> <li><a href="/wiki/Gliese_402" title="Gliese 402">EE</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:70px"><a href="/wiki/Bright_Star_Catalogue" title="Bright Star Catalogue">HR</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/HD_94402" class="mw-redirect" title="HD 94402">4253 (p<sup>1</sup>)</a></li> <li><a href="/wiki/HD_100655" title="HD 100655">4459 (Formosa)</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:70px"><a href="/wiki/Henry_Draper_Catalogue" title="Henry Draper Catalogue">HD</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/HD_81040" title="HD 81040">81040</a></li> <li><a href="/wiki/HD_88133" title="HD 88133">88133</a></li> <li><a href="/wiki/HD_89307" title="HD 89307">89307</a></li> <li><a href="/wiki/HD_96063" title="HD 96063">96063 (Dingolay)</a></li> <li><a href="/wiki/HD_97658" title="HD 97658">97658</a></li> <li><a href="/wiki/HD_99109" title="HD 99109">99109 (Shama)</a></li> <li><a href="/wiki/HD_100777" title="HD 100777">100777 (Sagarmatha)</a></li> <li><a href="/wiki/HD_102272" title="HD 102272">102272</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:70px">Other</th><td class="navbox-list-with-group navbox-list navbox-even" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/BD%2B20_2457" title="BD+20 2457">BD+20 2457</a></li> <li><a href="/wiki/Gliese_408" title="Gliese 408">Gliese 408</a></li> <li><a href="/wiki/Gliese_436" title="Gliese 436">Gliese 436 (Noquisi)</a></li> <li><a href="/wiki/GJ_3685" title="GJ 3685">GJ 3685</a></li> <li><a href="/wiki/HVS_7" title="HVS 7">HVS 7</a></li> <li><a href="/wiki/K2-3" title="K2-3">K2-3</a></li> <li><a href="/wiki/K2-18" title="K2-18">K2-18</a></li> <li><a href="/wiki/2MASSI_J0937347%2B293142" class="mw-redirect" title="2MASSI J0937347+293142">2MASSI J0937347+293142</a></li> <li><a href="/wiki/2MASS_J10475385%2B2124234" title="2MASS J10475385+2124234">2MASS J10475385+2124234</a></li> <li><a href="/wiki/MACS_J1149_Lensed_Star_1" title="MACS J1149 Lensed Star 1">MACS J1149 Lensed Star 1</a></li> <li><a href="/wiki/PSR_B0943%2B10" title="PSR B0943+10">PSR B0943+10</a></li> <li><a href="/wiki/PSR_B0950%2B08" title="PSR B0950+08">PSR B0950+08</a></li> <li><a class="mw-selflink selflink">SDSS J102915+172927</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><td colspan="2" class="navbox-list navbox-odd" style="padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th id="Exoplanets" scope="row" class="navbox-group" style="width:151px;background: #ddddff;"><a href="/wiki/Exoplanet" title="Exoplanet">Exoplanets</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Gamma1_Leonis_b" title="Gamma1 Leonis b">γ<sup>1</sup> Leonis b</a></li> <li><a href="/wiki/Mu_Leonis_b" class="mw-redirect" title="Mu Leonis b">μ Leonis b</a></li> <li><a href="/wiki/Upsilon_Leonis_b" class="mw-redirect" title="Upsilon Leonis b">υ Leonis b</a></li> <li><a href="/wiki/DP_Leonis_b" class="mw-redirect" title="DP Leonis b">DP Leonis b</a></li> <li><a href="/wiki/Gliese_436_b" title="Gliese 436 b">Gliese 436 b (Awohali)</a></li> <li><a href="/wiki/HD_81040_b" title="HD 81040 b">HD 81040 b</a></li> <li><a href="/wiki/HD_88133_b" title="HD 88133 b">HD 88133 b</a></li> <li><a href="/wiki/HD_89307_b" title="HD 89307 b">HD 89307 b</a></li> <li><a href="/wiki/HD_89345_b" title="HD 89345 b">HD 89345 b</a></li> <li><a href="/wiki/HD_96063_b" class="mw-redirect" title="HD 96063 b">HD 96063 b (Ramajay)</a></li> <li><a href="/wiki/HD_99109_b" title="HD 99109 b">HD 99109 b (Perwana)</a></li> <li><a href="/wiki/HD_100777_b" title="HD 100777 b">HD 100777 b (Laligurans)</a></li> <li><a href="/wiki/HD_102272_b" class="mw-redirect" title="HD 102272 b">HD 102272 b</a></li> <li><a href="/wiki/HD_102272_c" class="mw-redirect" title="HD 102272 c">c</a></li> <li><a href="/wiki/K2-18b" title="K2-18b">K2-18b</a></li> <li><a href="/wiki/K2-18c" class="mw-redirect" title="K2-18c">c</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><th scope="row" class="navbox-group" style="text-align: center;;width:55px"><a href="/wiki/Galaxy" title="Galaxy">Galaxies</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="padding:0"><div style="padding:0 0.25em"></div><table class="nowraplinks navbox-subgroup" style="border-spacing:0"><tbody><tr><th scope="row" class="navbox-group" style="width:70px"><a href="/wiki/Messier_object" title="Messier object">Messier</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Messier_65" title="Messier 65">65</a></li> <li><a href="/wiki/Messier_66" title="Messier 66">66</a></li> <li><a href="/wiki/Messier_95" title="Messier 95">95</a></li> <li><a href="/wiki/Messier_96" title="Messier 96">96</a></li> <li><a href="/wiki/Messier_105" title="Messier 105">105</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:70px"><a href="/wiki/New_General_Catalogue" title="New General Catalogue">NGC</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/NGC_2903" title="NGC 2903">2903</a></li> <li><a href="/wiki/NGC_2906" title="NGC 2906">2906</a></li> <li><a href="/wiki/NGC_2911" title="NGC 2911">2911</a></li> <li><a href="/wiki/NGC_2964" title="NGC 2964">2964</a></li> <li><a href="/wiki/NGC_3041" title="NGC 3041">3041</a></li> <li><a href="/wiki/NGC_3048" title="NGC 3048">3048</a></li> <li><a href="/wiki/NGC_3049" title="NGC 3049">3049</a></li> <li><a href="/wiki/NGC_3177" title="NGC 3177">3177</a></li> <li><a href="/wiki/NGC_3185" title="NGC 3185">3185</a></li> <li><a href="/wiki/NGC_3187" title="NGC 3187">3187</a></li> <li><a href="/wiki/NGC_3190" title="NGC 3190">3190</a></li> <li><a href="/wiki/NGC_3193" title="NGC 3193">3193</a></li> <li><a href="/wiki/NGC_3226" title="NGC 3226">3226</a></li> <li><a href="/wiki/NGC_3227" title="NGC 3227">3227</a></li> <li><a href="/wiki/NGC_3239" title="NGC 3239">3239</a></li> <li><a href="/wiki/NGC_3274" title="NGC 3274">3274</a></li> <li><a href="/wiki/NGC_3301" title="NGC 3301">3301</a></li> <li><a href="/wiki/NGC_3357" title="NGC 3357">3357</a></li> <li><a href="/wiki/NGC_3362" title="NGC 3362">3362</a></li> <li><a href="/wiki/NGC_3367" title="NGC 3367">3367</a></li> <li><a href="/wiki/NGC_3370" title="NGC 3370">3370</a></li> <li><a href="/wiki/NGC_3377" title="NGC 3377">3377</a></li> <li><a href="/wiki/NGC_3384" title="NGC 3384">3384</a></li> <li><a href="/wiki/NGC_3412" title="NGC 3412">3412</a></li> <li><a href="/wiki/NGC_3426" title="NGC 3426">3426</a></li> <li><a href="/wiki/NGC_3447" title="NGC 3447">3447</a></li> <li><a href="/wiki/NGC_3455" title="NGC 3455">3455</a></li> <li><a href="/wiki/NGC_3489" title="NGC 3489">3489</a></li> <li><a href="/wiki/NGC_3501" title="NGC 3501">3501</a></li> <li><a href="/wiki/NGC_3506" title="NGC 3506">3506</a></li> <li><a href="/wiki/NGC_3521" title="NGC 3521">3521</a></li> <li><a href="/wiki/NGC_3524" title="NGC 3524">3524</a></li> <li><a href="/wiki/NGC_3535" title="NGC 3535">3535</a></li> <li><a href="/wiki/NGC_3593" title="NGC 3593">3593</a></li> <li><a href="/wiki/NGC_3596" title="NGC 3596">3596</a></li> <li><a href="/wiki/NGC_3598" title="NGC 3598">3598</a></li> <li><a href="/wiki/NGC_3599" title="NGC 3599">3599</a></li> <li><a href="/wiki/NGC_3602" title="NGC 3602">3602</a></li> <li><a href="/wiki/NGC_3605" title="NGC 3605">3605</a></li> <li><a href="/wiki/NGC_3607" title="NGC 3607">3607</a></li> <li><a href="/wiki/NGC_3608" title="NGC 3608">3608</a></li> <li><a href="/wiki/NGC_3628" title="NGC 3628">3628</a></li> <li><a href="/wiki/NGC_3632" title="NGC 3632">3632</a></li> <li><a href="/wiki/NGC_3640" title="NGC 3640">3640</a></li> <li><a href="/wiki/NGC_3646" title="NGC 3646">3646</a></li> <li><a href="/wiki/NGC_3647" title="NGC 3647">3647</a></li> <li><a href="/wiki/NGC_3664" title="NGC 3664">3664</a></li> <li><a href="/wiki/NGC_3666" title="NGC 3666">3666</a></li> <li><a href="/wiki/NGC_3678" title="NGC 3678">3678</a></li> <li><a href="/wiki/NGC_3686" title="NGC 3686">3686</a></li> <li><a href="/wiki/NGC_3697" title="NGC 3697">3697</a></li> <li><a href="/wiki/NGC_3705" title="NGC 3705">3705</a></li> <li><a href="/wiki/NGC_3710" title="NGC 3710">3710</a></li> <li><a href="/wiki/NGC_3758" title="NGC 3758">3758</a></li> <li><a href="/wiki/NGC_3799" title="NGC 3799">3799</a></li> <li><a href="/wiki/NGC_3800" title="NGC 3800">3800</a></li> <li><a href="/wiki/NGC_3801" title="NGC 3801">3801</a></li> <li><a href="/wiki/NGC_3805" title="NGC 3805">3805</a></li> <li><a href="/wiki/NGC_3806" title="NGC 3806">3806</a></li> <li><a href="/wiki/NGC_3810" title="NGC 3810">3810</a></li> <li><a href="/wiki/NGC_3816" title="NGC 3816">3816</a></li> <li><a href="/wiki/NGC_3821" title="NGC 3821">3821</a></li> <li><a href="/wiki/NGC_3837" title="NGC 3837">3837</a></li> <li><a href="/wiki/NGC_3840" title="NGC 3840">3840</a></li> <li><a href="/wiki/NGC_3841" title="NGC 3841">3841</a></li> <li><a href="/wiki/NGC_3842" title="NGC 3842">3842</a></li> <li><a href="/wiki/NGC_3844" title="NGC 3844">3844</a></li> <li><a href="/wiki/NGC_3845" title="NGC 3845">3845</a></li> <li><a href="/wiki/NGC_3851" title="NGC 3851">3851</a></li> <li><a href="/wiki/NGC_3857" title="NGC 3857">3857</a></li> <li><a href="/wiki/NGC_3859" title="NGC 3859">3859</a></li> <li><a href="/wiki/NGC_3860" title="NGC 3860">3860</a></li> <li><a href="/wiki/NGC_3861" title="NGC 3861">3861</a></li> <li><a href="/wiki/NGC_3862" title="NGC 3862">3862</a></li> <li><a href="/wiki/NGC_3864" title="NGC 3864">3864</a></li> <li><a href="/wiki/NGC_3867" title="NGC 3867">3867</a></li> <li><a href="/wiki/NGC_3868" title="NGC 3868">3868</a></li> <li><a href="/wiki/NGC_3873" title="NGC 3873">3873</a></li> <li><a href="/wiki/NGC_3875" title="NGC 3875">3875</a></li> <li><a href="/wiki/NGC_3883" title="NGC 3883">3883</a></li> <li><a href="/wiki/NGC_3884" title="NGC 3884">3884</a></li> <li><a href="/wiki/NGC_3886" title="NGC 3886">3886</a></li> <li><a href="/wiki/NGC_3900" title="NGC 3900">3900</a></li> <li><a href="/wiki/NGC_3902" title="NGC 3902">3902</a></li> <li><a href="/wiki/NGC_3908" title="NGC 3908">3908</a></li> <li><a href="/wiki/NGC_3925" title="NGC 3925">3925</a></li> <li><a href="/wiki/NGC_3937" title="NGC 3937">3937</a></li> <li><a href="/wiki/NGC_3947" title="NGC 3947">3947</a></li> <li><a href="/wiki/NGC_3954" title="NGC 3954">3954</a></li> <li><a href="/wiki/NGC_4005" title="NGC 4005">4005</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:70px">Numbered</th><td class="navbox-list-with-group navbox-list navbox-even" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Leo_I_(dwarf_galaxy)" title="Leo I (dwarf galaxy)">I</a></li> <li><a href="/wiki/Leo_II_(dwarf_galaxy)" title="Leo II (dwarf galaxy)">II</a></li> <li><a href="/wiki/Leo_A" title="Leo A">III</a></li> <li><a href="/wiki/Leo_IV_(dwarf_galaxy)" title="Leo IV (dwarf galaxy)">IV</a></li> <li><a href="/wiki/Leo_V_(dwarf_galaxy)" title="Leo V (dwarf galaxy)">V</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:70px">Other</th><td class="navbox-list-with-group navbox-list navbox-odd" style="padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Cosmic_Horseshoe" title="Cosmic Horseshoe">Cosmic Horseshoe</a></li> <li><a href="/wiki/IC_2498" title="IC 2498">IC 2498</a></li> <li><a href="/wiki/IC_2628" title="IC 2628">IC 2628</a></li> <li><a href="/wiki/IRAS_10565%2B2448" title="IRAS 10565+2448">IRAS 10565+2448</a></li> <li><a href="/wiki/J1000%2B1242" title="J1000+1242">J1000+1242</a></li> <li><a href="/wiki/Leo_P" title="Leo P">Leo P</a></li> <li><a href="/wiki/Leo_T" title="Leo T">Leo T</a></li> <li><a href="/wiki/PSO_J172.3556%2B18.7734" title="PSO J172.3556+18.7734">PSO J172.3556+18.7734</a></li> <li><a href="/wiki/UGC_6614" title="UGC 6614">UGC 6614</a></li> <li><a href="/wiki/UGC_6697" title="UGC 6697">UGC 6697</a></li></ul> </div></td></tr></tbody></table><div></div></td></tr><tr><td class="navbox-abovebelow" colspan="2" style="text-align: center;"><div><span class="noviewer" typeof="mw:File"><span title="Category"><img alt="" src="//upload.wikimedia.org/wikipedia/en/thumb/9/96/Symbol_category_class.svg/16px-Symbol_category_class.svg.png" decoding="async" width="16" height="16" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/en/thumb/9/96/Symbol_category_class.svg/23px-Symbol_category_class.svg.png 1.5x, //upload.wikimedia.org/wikipedia/en/thumb/9/96/Symbol_category_class.svg/31px-Symbol_category_class.svg.png 2x" data-file-width="180" data-file-height="185" /></span></span> <a href="/wiki/Category:Leo_(constellation)" title="Category:Leo (constellation)">Category</a></div></td></tr></tbody></table></div> <div class="navbox-styles"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1129693374"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1236075235"></div><div role="navigation" class="navbox" aria-labelledby="2011_in_space" style="padding:3px"><table class="nowraplinks hlist mw-collapsible autocollapse navbox-inner" style="border-spacing:0;background:transparent;color:inherit"><tbody><tr><th scope="col" class="navbox-title" colspan="3"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1129693374"><link rel="mw-deduplicated-inline-style" href="mw-data:TemplateStyles:r1239400231"><div class="navbar plainlinks hlist navbar-mini"><ul><li class="nv-view"><a href="/wiki/Template:2011_in_space" title="Template:2011 in space"><abbr title="View this template">v</abbr></a></li><li class="nv-talk"><a href="/wiki/Template_talk:2011_in_space" title="Template talk:2011 in space"><abbr title="Discuss this template">t</abbr></a></li><li class="nv-edit"><a href="/wiki/Special:EditPage/Template:2011_in_space" title="Special:EditPage/Template:2011 in space"><abbr title="Edit this template">e</abbr></a></li></ul></div><div id="2011_in_space" style="font-size:114%;margin:0 4em">2011 in space</div></th></tr><tr><td class="navbox-abovebelow" colspan="3"><div><div style="float: right;"><a href="/wiki/Template:2012_in_space" title="Template:2012 in space">2012</a> » </div></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/2011_in_spaceflight" title="2011 in spaceflight">Space probe launches</a> <span typeof="mw:File"><a href="/wiki/Category:Space_probes_launched_in_2011" title="Category:Space probes launched in 2011"><img alt="Space probes launched in 2011" src="//upload.wikimedia.org/wikipedia/en/thumb/9/96/Symbol_category_class.svg/15px-Symbol_category_class.svg.png" decoding="async" width="15" height="15" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/en/thumb/9/96/Symbol_category_class.svg/23px-Symbol_category_class.svg.png 1.5x, //upload.wikimedia.org/wikipedia/en/thumb/9/96/Symbol_category_class.svg/30px-Symbol_category_class.svg.png 2x" data-file-width="180" data-file-height="185" /></a></span></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/Juno_(spacecraft)" title="Juno (spacecraft)"><i>Juno</i></a> (Jupiter orbiter; Aug 2011)</li> <li><a href="/wiki/GRAIL" title="GRAIL">GRAIL</a> (mission to the Moon; Sep 2011)</li> <li><a href="/wiki/Yinghuo-1" title="Yinghuo-1">Yinghuo-1</a> (Mars orbiter); Nov 2011)</li> <li><a href="/wiki/Mars_Science_Laboratory" title="Mars Science Laboratory">Mars Science Laboratory</a> / <a href="/wiki/Curiosity_(rover)" title="Curiosity (rover)"><i>Curiosity</i> rover</a> (mission to Mars; Nov 2011)</li> <li><a href="/wiki/Fobos-Grunt" title="Fobos-Grunt">Fobos-Grunt</a> (mission to Mars; Nov 2011)</li></ul> </div></td><td class="noviewer navbox-image" rowspan="7" style="width:1px;padding:0 0 0 2px;padding-left: 0.5em;"><div><span typeof="mw:File"><a href="/wiki/File:Kepler22b-artwork.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/1/1e/Kepler22b-artwork.jpg/150px-Kepler22b-artwork.jpg" decoding="async" width="150" height="113" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/1/1e/Kepler22b-artwork.jpg/225px-Kepler22b-artwork.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/1/1e/Kepler22b-artwork.jpg/300px-Kepler22b-artwork.jpg 2x" data-file-width="4096" data-file-height="3072" /></a></span><br /><span typeof="mw:File"><a href="/wiki/File:Artist%27s_rendering_ULAS_J1120%2B0641.jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/3/38/Artist%27s_rendering_ULAS_J1120%2B0641.jpg/150px-Artist%27s_rendering_ULAS_J1120%2B0641.jpg" decoding="async" width="150" height="89" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/3/38/Artist%27s_rendering_ULAS_J1120%2B0641.jpg/225px-Artist%27s_rendering_ULAS_J1120%2B0641.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/3/38/Artist%27s_rendering_ULAS_J1120%2B0641.jpg/300px-Artist%27s_rendering_ULAS_J1120%2B0641.jpg 2x" data-file-width="4112" data-file-height="2438" /></a></span><br /><span typeof="mw:File"><a href="/wiki/File:Vesta_in_natural_color_(cropped).jpg" class="mw-file-description"><img src="//upload.wikimedia.org/wikipedia/commons/thumb/d/dc/Vesta_in_natural_color_%28cropped%29.jpg/150px-Vesta_in_natural_color_%28cropped%29.jpg" decoding="async" width="150" height="113" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/d/dc/Vesta_in_natural_color_%28cropped%29.jpg/225px-Vesta_in_natural_color_%28cropped%29.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/d/dc/Vesta_in_natural_color_%28cropped%29.jpg/300px-Vesta_in_natural_color_%28cropped%29.jpg 2x" data-file-width="1220" data-file-height="915" /></a></span></div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Selected <a href="/wiki/Near-Earth_object" title="Near-Earth object">NEOs</a></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/List_of_asteroid_close_approaches_to_Earth_in_2011" title="List of asteroid close approaches to Earth in 2011">Asteroid close approaches</a></li> <li><span class="nowrap"><a href="/wiki/(367789)_2011_AG5" title="(367789) 2011 AG5">(367789) 2011 AG<span style="position: relative; top: 0.3em;"><span style="font-size:80%;">5</span></span></a></span></li> <li><span class="nowrap"><a href="/wiki/(471240)_2011_BT15" title="(471240) 2011 BT15">(471240) 2011 BT<span style="position: relative; top: 0.3em;"><span style="font-size:80%;">15</span></span></a></span></li> <li><span class="nowrap"><a href="/wiki/2011_CQ1" title="2011 CQ1">2011 CQ<span style="position: relative; top: 0.3em;"><span style="font-size:80%;">1</span></span></a></span></li> <li><span class="nowrap"><a href="/wiki/2011_ES4" title="2011 ES4">2011 ES<span style="position: relative; top: 0.3em;"><span style="font-size:80%;">4</span></span></a></span></li> <li><span class="nowrap"><a href="/wiki/2011_EO40" title="2011 EO40">2011 EO<span style="position: relative; top: 0.3em;"><span style="font-size:80%;">40</span></span></a></span></li> <li><a href="/wiki/2011_GA" title="2011 GA">2011 GA</a></li> <li><a href="/wiki/2009_BD" title="2009 BD">2009 BD</a></li> <li><a href="/wiki/2011_MD" title="2011 MD">2011 MD</a></li> <li><span class="nowrap"><a href="/wiki/(415029)_2011_UL21" title="(415029) 2011 UL21">(415029) 2011 UL<span style="position: relative; top: 0.3em;"><span style="font-size:80%;">21</span></span></a></span></li> <li><span class="nowrap"><a href="/wiki/(436724)_2011_UW158" title="(436724) 2011 UW158">(436724) 2011 UW<span style="position: relative; top: 0.3em;"><span style="font-size:80%;">158</span></span></a></span></li> <li><span class="nowrap"><a href="/wiki/(308635)_2005_YU55" title="(308635) 2005 YU55">(308635) 2005 YU<span style="position: relative; top: 0.3em;"><span style="font-size:80%;">55</span></span></a></span></li> <li><span class="nowrap"><a href="/wiki/(549948)_2011_WL2" title="(549948) 2011 WL2">(549948) 2011 WL<span style="position: relative; top: 0.3em;"><span style="font-size:80%;">2</span></span></a></span></li> <li><span class="nowrap"><a href="/wiki/2011_XC2" title="2011 XC2">2011 XC<span style="position: relative; top: 0.3em;"><span style="font-size:80%;">2</span></span></a></span></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/List_of_exoplanets_discovered_in_2011" title="List of exoplanets discovered in 2011">Exoplanets</a> <span typeof="mw:File"><a href="/wiki/Category:Exoplanets_discovered_in_2011" title="Category:Exoplanets discovered in 2011"><img alt="Exoplanets discovered in 2011" src="//upload.wikimedia.org/wikipedia/en/thumb/9/96/Symbol_category_class.svg/15px-Symbol_category_class.svg.png" decoding="async" width="15" height="15" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/en/thumb/9/96/Symbol_category_class.svg/23px-Symbol_category_class.svg.png 1.5x, //upload.wikimedia.org/wikipedia/en/thumb/9/96/Symbol_category_class.svg/30px-Symbol_category_class.svg.png 2x" data-file-width="180" data-file-height="185" /></a></span></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/82_G._Eridani" title="82 G. Eridani">82 G. Eridani</a> <ul><li>b</li> <li>c</li> <li>d</li></ul></li> <li><a href="/wiki/Gliese_433" title="Gliese 433">Gliese 433 b</a></li> <li>habitability of <a href="/wiki/Gliese_581d" title="Gliese 581d">Gliese 581d</a></li> <li><a href="/wiki/Gliese_3634_b" class="mw-redirect" title="Gliese 3634 b">Gliese 3634 b</a></li> <li><a href="/wiki/HAT-P-32b" title="HAT-P-32b">HAT-P-32b</a></li> <li><a href="/wiki/HAT-P-33b" title="HAT-P-33b">HAT-P-33b</a></li> <li><a href="/wiki/HD_1502" title="HD 1502">HD 1502 b</a></li> <li><a href="/wiki/HD_7199" title="HD 7199">HD 7199 b</a></li> <li><a href="/wiki/HD_30856" title="HD 30856">HD 30856 b</a></li> <li><a href="/wiki/HD_82886" title="HD 82886">HD 82886 b</a></li> <li><a href="/wiki/HD_85512_b" class="mw-redirect" title="HD 85512 b">HD 85512 b</a></li> <li><a href="/wiki/HD_96063" title="HD 96063">HD 96063 b</a></li> <li><a href="/wiki/HD_98219" title="HD 98219">HD 98219 b</a></li> <li><a href="/wiki/HD_100655" title="HD 100655">HD 100655 b</a></li> <li><a href="/wiki/HD_131496" title="HD 131496">HD 131496 b</a></li> <li><a href="/wiki/HD_137388" title="HD 137388">HD 137388 b</a></li> <li><a href="/wiki/HIP_57274" title="HIP 57274">HIP 57274</a> <ul><li>b</li> <li>c</li> <li><a href="/wiki/HIP_57274_d" title="HIP 57274 d">d</a></li></ul></li> <li><a href="/wiki/HR_7722_c" class="mw-redirect" title="HR 7722 c">HR 7722 c</a></li> <li><a href="/wiki/Kepler-9d" title="Kepler-9d">Kepler-9d</a></li> <li><a href="/wiki/Kepler-10" title="Kepler-10">Kepler-10</a> <ul><li><a href="/wiki/Kepler-10b" title="Kepler-10b">b</a></li> <li><a href="/wiki/Kepler-10c" title="Kepler-10c">c</a></li></ul></li> <li><a href="/wiki/Kepler-11" title="Kepler-11">Kepler-11</a> <ul><li><a href="/wiki/Kepler-11b" title="Kepler-11b">b</a></li> <li><a href="/wiki/Kepler-11c" title="Kepler-11c">c</a></li> <li><a href="/wiki/Kepler-11d" title="Kepler-11d">d</a></li> <li><a href="/wiki/Kepler-11e" title="Kepler-11e">e</a></li> <li><a href="/wiki/Kepler-11f" title="Kepler-11f">f</a></li> <li><a href="/wiki/Kepler-11g" title="Kepler-11g">g</a></li></ul></li> <li><a href="/wiki/Kepler-14b" title="Kepler-14b">Kepler-14b</a></li> <li><a href="/wiki/Kepler-16b" title="Kepler-16b">Kepler-16b</a></li> <li><a href="/wiki/Kepler-18" title="Kepler-18">Kepler-18</a> <ul><li>b</li> <li>c</li> <li>d</li></ul></li> <li><a href="/wiki/Kepler-20" title="Kepler-20">Kepler-20</a> <ul><li><a href="/wiki/Kepler-20b" title="Kepler-20b">b</a></li> <li><a href="/wiki/Kepler-20c" title="Kepler-20c">c</a></li> <li><a href="/wiki/Kepler-20d" title="Kepler-20d">d</a></li> <li><a href="/wiki/Kepler-20e" title="Kepler-20e">e</a></li> <li><a href="/wiki/Kepler-20f" title="Kepler-20f">f</a></li></ul></li> <li><a href="/wiki/Kepler-22b" title="Kepler-22b">Kepler-22b</a></li> <li><a href="/wiki/Kepler-39b" title="Kepler-39b">Kepler-39b</a></li> <li><a href="/wiki/Kepler-70" title="Kepler-70">Kepler-70</a> <ul><li><a href="/wiki/Kepler-70b" class="mw-redirect" title="Kepler-70b">b</a></li> <li><a href="/wiki/Kepler-70c" class="mw-redirect" title="Kepler-70c">c</a></li></ul></li> <li><a href="/wiki/LkCa_15_b" class="mw-redirect" title="LkCa 15 b">LkCa 15 b</a></li> <li><a href="/wiki/MOA-2009-BLG-387Lb" title="MOA-2009-BLG-387Lb">MOA-2009-BLG-387Lb</a></li> <li><a href="/wiki/PSR_J1719%E2%88%921438_b" title="PSR J1719−1438 b">PSR J1719−1438 b</a></li> <li><a href="/wiki/WASP-39b" title="WASP-39b">WASP-39b</a></li> <li><a href="/wiki/WASP-43b" title="WASP-43b">WASP-43b</a></li> <li><a href="/wiki/WASP-44b" title="WASP-44b">WASP-44b</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Discoveries</th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/UDFj-39546284" title="UDFj-39546284">UDFj-39546284</a></li> <li><a href="/wiki/Swift_J1644%2B57" title="Swift J1644+57">Swift J1644+57</a></li> <li><a href="/wiki/Kronberger_61" title="Kronberger 61">Kronberger 61</a></li> <li><a href="/wiki/WD_0806%E2%88%92661" title="WD 0806−661">WD 0806−661</a></li> <li><a href="/wiki/ULAS_J1120%2B0641" title="ULAS J1120+0641">ULAS J1120+0641</a></li> <li><a href="/wiki/Kerberos_(moon)" title="Kerberos (moon)">Kerberos (moon)</a></li> <li><a href="/wiki/PSR_J1719%E2%88%921438" title="PSR J1719−1438">PSR J1719−1438</a></li> <li><a href="/wiki/Uranus_trojan" class="mw-redirect" title="Uranus trojan">Uranus trojan</a> <span class="nowrap"><a href="/wiki/2011_QF99" class="mw-redirect" title="2011 QF99">2011 QF<span style="position: relative; top: 0.3em;"><span style="font-size:80%;">99</span></span></a></span></li> <li><a href="/wiki/U1.11" title="U1.11">U1.11</a></li> <li><a class="mw-selflink selflink">SDSS J102915+172927</a></li> <li>2 <a href="/wiki/Moons_of_Jupiter" title="Moons of Jupiter">moons of Jupiter</a></li> <li><a href="/wiki/GRB_111209A" title="GRB 111209A">GRB 111209A</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%"><a href="/wiki/Nova" title="Nova">Novae</a></th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/SN_2010lt" title="SN 2010lt">SN 2010lt</a></li> <li><a href="/wiki/SN_2011by" title="SN 2011by">SN 2011by</a></li> <li><a href="/wiki/SN_2011dh" title="SN 2011dh">SN 2011dh</a></li> <li><a href="/wiki/SN_2011fe" title="SN 2011fe">SN 2011fe</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Comets <span typeof="mw:File"><a href="/wiki/Category:Comets_in_2011" title="Category:Comets in 2011"><img alt="Comets in 2011" src="//upload.wikimedia.org/wikipedia/en/thumb/9/96/Symbol_category_class.svg/15px-Symbol_category_class.svg.png" decoding="async" width="15" height="15" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/en/thumb/9/96/Symbol_category_class.svg/23px-Symbol_category_class.svg.png 1.5x, //upload.wikimedia.org/wikipedia/en/thumb/9/96/Symbol_category_class.svg/30px-Symbol_category_class.svg.png 2x" data-file-width="180" data-file-height="185" /></a></span></th><td class="navbox-list-with-group navbox-list navbox-even" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><a href="/wiki/P/2011_NO1_(Elenin)" class="mw-redirect" title="P/2011 NO1 (Elenin)"><span class="nowrap">P/2011 NO<sub>1</sub></span> (Elenin)</a></li> <li><a href="/wiki/45P/Honda%E2%80%93Mrkos%E2%80%93Pajdu%C5%A1%C3%A1kov%C3%A1" title="45P/Honda–Mrkos–Pajdušáková">45P/Honda–Mrkos–Pajdušáková</a></li> <li><a href="/wiki/C/2011_W3_(Lovejoy)" title="C/2011 W3 (Lovejoy)">C/2011 W3 (Lovejoy)</a></li></ul> </div></td></tr><tr><th scope="row" class="navbox-group" style="width:1%">Space exploration</th><td class="navbox-list-with-group navbox-list navbox-odd" style="width:100%;padding:0"><div style="padding:0 0.25em"> <ul><li><i><a href="/wiki/MESSENGER" title="MESSENGER">MESSENGER</a></i> (<a href="/wiki/Mercury_(planet)" title="Mercury (planet)">Mercury</a> orbital insertion; Apr 2011)</li> <li><a href="/wiki/Spirit_(rover)" title="Spirit (rover)"><i>Spirit</i></a> (end of mission; Mar 2010 / May 2011)</li> <li><a href="/wiki/Dawn_(spacecraft)" title="Dawn (spacecraft)"><i>Dawn</i></a> (<a href="/wiki/4_Vesta" title="4 Vesta">Vesta</a> orbital insertion; Jul 2011)</li></ul> </div></td></tr><tr><td class="navbox-abovebelow" colspan="3"><div> <ul><li><span class="nowrap"><span class="noviewer" typeof="mw:File"><span><img alt="" src="//upload.wikimedia.org/wikipedia/commons/thumb/5/5c/Earth-moon.jpg/32px-Earth-moon.jpg" decoding="async" width="32" height="26" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/commons/thumb/5/5c/Earth-moon.jpg/48px-Earth-moon.jpg 1.5x, //upload.wikimedia.org/wikipedia/commons/thumb/5/5c/Earth-moon.jpg/64px-Earth-moon.jpg 2x" data-file-width="3000" data-file-height="2400" /></span></span> </span><a href="/wiki/Portal:Outer_space" title="Portal:Outer space">Outer space portal</a></li> <li><span class="noviewer" typeof="mw:File"><span title="Category"><img alt="" src="//upload.wikimedia.org/wikipedia/en/thumb/9/96/Symbol_category_class.svg/16px-Symbol_category_class.svg.png" decoding="async" width="16" height="16" class="mw-file-element" srcset="//upload.wikimedia.org/wikipedia/en/thumb/9/96/Symbol_category_class.svg/23px-Symbol_category_class.svg.png 1.5x, //upload.wikimedia.org/wikipedia/en/thumb/9/96/Symbol_category_class.svg/31px-Symbol_category_class.svg.png 2x" data-file-width="180" data-file-height="185" /></span></span> <a href="/wiki/Category:2010_in_outer_space" title="Category:2010 in outer space">Category:2010 in outer space</a> — <b><a href="/wiki/Category:2011_in_outer_space" title="Category:2011 in outer space">Category:2011 in outer space</a></b> — <a href="/wiki/Category:2012_in_outer_space" title="Category:2012 in outer space">Category:2012 in outer space</a></li></ul> </div></td></tr></tbody></table></div>    </div><noscript><img src="https://login.wikimedia.org/wiki/Special:CentralAutoLogin/start?type=1x1" alt="" width="1" height="1" style="border: none; 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