Earth spinning within a celestial sphere, depicting stars, the ecliptic, and lines of right ascension and declination. Spinning Earth derived from: <a href="//commons.wikimedia.org/wiki/File:Rotating_earth_(Very_small).gif" title="File:Rotating earth (Very small).gif">File:Rotating_earth_(Very_small).gif</a>
<a href="//commons.wikimedia.org/w/index.php?title=User:Tfr000&amp;action=edit&amp;redlink=1" class="new" title="User:Tfr000 (page does not exist)">Tfr000</a> (<a href="//commons.wikimedia.org/wiki/User_talk:Tfr000" title="User talk:Tfr000"><span class="signature-talk">talk</span></a>) 20:06, 29 March 2012 (UTC)
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<span class="int-own-work" lang="en">Own work</span>