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aligncenter" style="min-width: 970px; min-height: 90px;"> <script> googletag.cmd.push(function() { googletag.display('gpt-ad-article-970x90'); }); </script> </div>  <div id="gpt-ad-article-320x50" class="google-ad gpt-ad-article-320x50 mobile-only aligncenter" style="min-width: 320px; min-height: 50px;"> <script> googletag.cmd.push(function() { googletag.display('gpt-ad-article-320x50'); }); </script> </div> <article id="post-139469" class="post-139469 post type-post status-publish format-standard has-post-thumbnail hentry category-astronomy-for-beginners category-observing-basics tag-ask-astro tag-constellations tag-magazine issues-february-2014 entry"> <header class="article-header entry-header"> <button type="button" class="article-header__back-button js-back-button" aria-label="Return to the previous page"> Back to Article List </button> <div class="article-header__issue"> <a href="https://www.astronomy.com/issues/2014/february-2014/">From the February 2014 issue</a> </div> <h1 class="article-header__title entry-title">Why do the constellations and the Moon appear upside down from the Southern Hemisphere?</h1> <div class="article-header__meta"> <span class="author"> By <a href="https://www.astronomy.com/author/astronomystaff/" title="Posts by Astronomy Staff" class="author url fn" rel="author">Astronomy Staff</a> </span> <span class="sep"> | </span> <span class="date"> Published: February 24, 2014 </span> <span class="last-updated" style="display: inline;">| Last updated on January 17, 2024</span> </div> <br /> <script type="module" crossorigin src="https://instaread.co/js/instaread.player.js"></script> <instaread-player publication="astronomy"></instaread-player> </header> <div class="entry-content"> <div class="featured-img"> <img width="620" height="458" src="https://www.astronomy.com/uploads/2014/02/OriontheHunter.jpg" class="attachment-large size-large wp-post-image" alt="The constellation Orion from the Northern (left) and Southern (right) hemisphere" /> <div class="featured-img__caption"> The constellation Orion the Hunter looks upside down and flipped right to left in the Southern Hemisphere (right) compared to the Northern Hemisphere. Credit: Astronomy: Richard Talcott and Roen Kelly </div> </div> <p><strong>Q: Why do the constellations and the Moon appear upside down from the Southern Hemisphere?</strong></p> <p class="has-text-align-right"><strong><em>Paul Kersey</em></strong><br><em>Phillipsburg, New Jersey</em></p> <p><strong>A:</strong> From the Southern Hemisphere, any object or constellation that lies near the celestial equator (the imaginary line that divides the northern and southern halves of the sky) would appear both upside down and reversed left to right compared to a northern perspective.</p> <p>Let鈥檚 use the constellation Orion as an example. Copper-hued Betelgeuse (Alpha [伪] Orionis) lies at the northeastern corner of the Hunter鈥檚 torso, while blue-white Rigel (Beta [尾] Orionis) marks his southwestern foot. From the Northern Hemisphere, observers have to look toward the south to see Orion, and therefore the southern part of the constellation appears closer to the horizon. And when you face south, east is to your left. So, observers see Betelgeuse at the upper left of Orion and Rigel at the lower right.</p> <p>From the Southern Hemisphere, however, Orion appears in the north, so it鈥檚 the northern part of the constellation that lies closest to the horizon. And when you look north, east is to your right. So the Orion that skywatchers see from the Southern Hemisphere has Betelgeuse at the lower right and Rigel at the upper left. The same geometry holds true for the other constellations as well as for the Moon and planets.</p> <p class="has-text-align-right"><strong><em>Michael E. 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