New planet discovered -- covered with ice at 250 degrees (celcius)


	New planet discovered -- covered with ice at 250 degrees (celcius)

l1wulf

5-19-2007 2:54 PM

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tags:

astronomy, planet

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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://www.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/188e29aa-de8e-4683-b1cb-4326204bca79/EB586DE3-82F5-4333-9016-DD2FDE207B49/" 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.universetoday.com/2007/05/17/neptune-sized-planet-covered-in-superhot-ice/" href="http://www.universetoday.com/2007/05/17/neptune-sized-planet-covered-in-superhot-ice/" style="font-size: 11px;">www.universetoday.com</a></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://www.universetoday.com/2007/05/17/neptune-sized-planet-covered-in-superhot-ice/"><DIV class="art_images"><IMG width="250" height="187" alt="Artist impression of GJ436. Image credit: NASA" title="Artist impression of GJ436. Image credit: NASA" src="http://www.universetoday.com/wp-content/uploads/2007/05/2007-0517gj436.thumbnail.jpg" class="post-image" /><BR /><SPAN class="caption">Artist impression of GJ436. Image credit: NASA</SPAN><BR /><A href="http://www.universetoday.com/wp-content/uploads/2007/05/2007-0517gj436.jpg">Click to enlarge</A></DIV></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.universetoday.com/2007/05/17/neptune-sized-planet-covered-in-superhot-ice/"><P>One of the most dramatic extrasolar planetary discoveries of the year was announced this week; unfortunately, with little fanfare. Planet hunters uncovered a Neptune-sized planet orbiting a nearby star. This planet is close enough to its parent star that it’s extremely hot - above 250 degrees Celsius. And yet the intense pressure from gravity forces large quantities of liquid water into solid ice. </P></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.universetoday.com/2007/05/17/neptune-sized-planet-covered-in-superhot-ice/"><P>The planet was discovered orbiting the nearby M-dwarf star GJ 436 using the planetary transit technique. This is where a sensitive instrument called a photometer measures the periodic dimming and brightening of a star as a planet passes in front. In August 2006, astronomers captured the first hint of the planet using the Observatoire Francois-Xavier Bagnoud (OFXB) observatory in St-Luc Switzerland. It was then confirmed using the Euler 1.2m telescope at La Silla Observatory in Chile. </P></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/EB586DE3-82F5-4333-9016-DD2FDE207B49/blog/" title="blog or email this clip"><img src="http://content9.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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