The Gegenschein Over Chile

skwirlinator

5-7-2008 8:59 AM

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<div style="margin: 12px 0px; font-family: arial; color: #333333; background: #ffffff; border: solid 4px #e5e5e5; width: 100%; clear: left;"><div class="CM_CTB_Content_Wrap" style="margin: 0px; padding: 0px;background-color: #ffffff;"><div style="border-bottom: solid 1px #dcdcdc; white-space: nowrap; margin-bottom: 8px; background-color: #eeeeee ;background-image: url(http://clipmarks.com/images/source-bg.gif); background-repeat: repeat-x; height: 24px; line-height: 24px; vertical-align: middle; padding-bottom: 4px; color: #666666; font-size: 10px;" ><a href="http://clipmarks.com/clip-to-blog/" title="see clips that are hot right now"><img src="http://content.clipmarks.com/blog_embed/918fbdd5-7bad-4cd2-8bd8-e0ce87876927/11F9F4CA-9126-4D76-ACE3-B034BD77BB87/" alt="" width="19" height="19" border="0" style="vertical-align: middle; margin: 0px 4px; display: inline; border: none; float:none;" /></a>clipped from <a title="http://antwrp.gsfc.nasa.gov/apod/image/0805/gegenschein_eso_big.jpg" href="http://antwrp.gsfc.nasa.gov/apod/image/0805/gegenschein_eso_big.jpg" style="font-size: 11px;">antwrp.gsfc.nasa.gov</a></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://antwrp.gsfc.nasa.gov/apod/image/0805/gegenschein_eso_big.jpg"><div align="center"><img src="http://content9.clipmarks.com/blog_cache/antwrp.gsfc.nasa.gov/img/E4D93580-5E9A-492B-ABF8-15B180D5D616" alt="http://antwrp.gsfc.nasa.gov/apod/image/0805/gegenschein_eso_big.jpg" /></div></blockquote><div style="border-bottom: solid 1px #dcdcdc; white-space: nowrap; margin-bottom: 8px; background-color: #eeeeee ;background-image: url(http://clipmarks.com/images/source-bg.gif); background-repeat: repeat-x; height: 24px; line-height: 24px; vertical-align: middle; padding-bottom: 4px; color: #666666; font-size: 10px;" ><a href="http://clipmarks.com/clip-to-blog/" title="see clips that are hot right now"><img src="http://content6.clipmarks.com/images/clip-icon.gif" alt="" width="19" height="19" border="0" style="vertical-align: middle; margin: 0px 4px; display: inline; border: none; float:none;" /></a>clipped from <a title="http://www.coolscifi.com/forums/showthread.php?t=191857" href="http://www.coolscifi.com/forums/showthread.php?t=191857" style="font-size: 11px;">www.coolscifi.com</a></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://www.coolscifi.com/forums/showthread.php?t=191857">a rarely discernable faint glow known as <A target="_blank" href="http://www.as.wvu.edu/~jel/skywatch/skw9810h.html">the gegenschein</A> (German for "counter glow") can be seen 180 degrees around from the Sun in an extremely dark sky. The gegenschein is sunlight back-scattered off small interplanetary <A target="_blank" href="http://antwrp.gsfc.nasa.gov/apod/ap010813.html">dust</A> particles. These dust particles are millimeter sized splinters from <A target="_blank" href="http://antwrp.gsfc.nasa.gov/apod/ap980712.html">asteroids</A> and orbit in the <A target="_blank" href="http://antwrp.gsfc.nasa.gov/apod/ap990529.html">ecliptic plane</A> of the planets.</blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://www.coolscifi.com/forums/showthread.php?t=191857"> <A target="_blank" href="http://en.wikipedia.org/wiki/Gegenschein">The gegenschein</A> is distinguished from <A target="_blank" href="http://antwrp.gsfc.nasa.gov/apod/ap040825.html">zodiacal light</A> near the Sun by the high angle of reflection. During the day, a phenomenon similar to <A target="_blank" href="http://adsabs.harvard.edu/cgi-bin/nph-bib_query?bibcode=1997MNRAS.288.1022J">the gegenschein</A> called <A target="_blank" href="http://antwrp.gsfc.nasa.gov/apod/ap020417.html">the glory</A> can be seen in reflecting air or clouds opposite the Sun from an airplane.</blockquote><div style="height: 2px; font-size: 2px; background: #dcdcdc; border-bottom: solid 1px #f5f5f5; margin: 2px 4px;"></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://www.coolscifi.com/forums/showthread.php?t=191857">notable background objects include the <A target="_blank" href="http://antwrp.gsfc.nasa.gov/apod/ap061126.html">Andromeda galaxy</A> toward the lower left and the <A target="_blank" href="http://antwrp.gsfc.nasa.gov/apod/ap060109.html">Pleiades</A> star cluster just above the horizon.</blockquote></div><div style="margin: 0px 6px 6px 4px;"><table style="font-size: 11px;border-spacing: 0px;padding: 0px;" cellpadding="0" cellspacing="0" width="100%"><tr><td style="background:transparent;border-width:0px;padding:0px;">&nbsp;</td><td align="right" style="background:transparent;border-width:0px;padding:0px;width:107px" width="107"><a href="http://clipmarks.com/share/11F9F4CA-9126-4D76-ACE3-B034BD77BB87/blog/" title="blog or email this clip"><img src="http://content7.clipmarks.com/images/c2b-foot.png" border="0" alt="blog it" width="107" height="17" style="border-width:0px;padding:0px;margin:0px;" /></a></td></tr></table></div></div>

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