How to destroy a Giant Planet


	How to destroy a Giant Planet

Oortcloud

12-6-2007 11:44 PM

568 views

tags:

jupiter, planet, astronomy, space

Oortcloud says:

I bet this would be something to see

2 Comments |

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12-7-2007 1:17 PM

AtlLiberal

I bet this would be something to see

Best seen from a remote vantage point.

12-7-2007 1:19 PM

Eladora

wow!

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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/97c7e872-fbbd-41f7-823c-064c654a94db/13FAA1B0-1965-4330-8A0B-E78F88B38773/" 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.livescience.com/space/scienceastronomy/071205-giant-planets.html" href="http://www.livescience.com/space/scienceastronomy/071205-giant-planets.html" style="font-size: 11px;">www.livescience.com</a></div><blockquote style="text-align: left; padding: 0px 8px; margin: 4px 0px 8px 0px; background: transparent; border: none;" cite="http://www.livescience.com/space/scienceastronomy/071205-giant-planets.html"><div align="center"><img src="http://content8.clipmarks.com/blog_cache/www.livescience.com/img/83061C9C-1B43-4B2D-97B3-22C962FE9D19" alt="" /></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.livescience.com/space/scienceastronomy/071205-giant-planets.html"><P class="MsoNormal"><SPAN>Among many
questions about all this, one has just been answered: How close can a giant
planet get to a star before its atmosphere becomes unstable and the planet is
<A href="http://www.space.com/php/multimedia/imagedisplay/img_display.php?pic=071205-planet-boil-02.jpg&cap=If+planets+creep+too+close+to+their+host+star%2C+their+atmospheres+are+blown+off+into+space+but+energetic+solar+output.+Here%2C+this+artist%E2%80%99s+impression+shows+an+extended+ellipsoidal+envelope+around+the+exoplanet+HD+209458b+being+cast+off+into+space.+Credit:+Alfred+Vidal-Madjar%2FEuropean+Space+Agency">doomed to catastrophe</A>?</SPAN></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.livescience.com/space/scienceastronomy/071205-giant-planets.html"><SPAN>The study
involved comparing Jupiter to other giant exoplanets.</SPAN></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.livescience.com/space/scienceastronomy/071205-giant-planets.html"><SPAN>"If you
brought Jupiter inside the Earth's orbit, to 0.16AU, it would remain
Jupiter-like, with a stable atmosphere," Koskinen said. "But if you
brought it just a little bit closer to the sun, to 0.14AU, its atmosphere would
suddenly start to expand, become <A href="http://www.space.com/scienceastronomy/shrinking_planet_030312.html">unstable and escape</A>."</SPAN></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.livescience.com/space/scienceastronomy/071205-giant-planets.html"><SPAN>"We found
that 0.15AU is the significant point of no return," said study co-author
Alan Aylward. "If you take a planet even slightly beyond this, molecular
hydrogen becomes unstable and no more H3+ is produced. The self-regulating,
'thermostatic' effect then disintegrates and the atmosphere begins to heat up
uncontrollably."</SPAN></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.livescience.com/space/scienceastronomy/071205-giant-planets.html">"This gives
us an insight to the evolution of giant planets,</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/13FAA1B0-1965-4330-8A0B-E78F88B38773/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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