New Pluto images discussed |
New Pluto images discussed |
Feb 2 2010, 10:23 AM
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#1
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Senior Member Group: Members Posts: 3516 Joined: 4-November 05 From: North Wales Member No.: 542 |
Telecon announcement (via Jupiter List - thanks)
http://tech.groups.yahoo.com/group/jupiter_list/message/8170 |
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Feb 7 2010, 05:44 AM
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#2
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Director of Galilean Photography Group: Members Posts: 896 Joined: 15-July 04 From: Austin, TX Member No.: 93 |
I think the slightest albedo difference would tend to accelerate and cause differentials like Iapetus. As the planet gets farther away, the brighter locations cool down first and get more frost first.
-------------------- Space Enthusiast Richard Hendricks
-- "The engineers, as usual, made a tremendous fuss. Again as usual, they did the job in half the time they had dismissed as being absolutely impossible." --Rescue Party, Arthur C Clarke Mother Nature is the final inspector of all quality. |
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Feb 7 2010, 08:04 AM
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#3
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Senior Member Group: Members Posts: 3516 Joined: 4-November 05 From: North Wales Member No.: 542 |
I think the slightest albedo difference would tend to accelerate Exactly what I was thinking. Picture different regions with different underlying albedos/textures covered in thin (partly transparent?) 'frost'. When clearing starts in a particular region the whole patch goes relatively quickly, redistributing that material to cooler regions and thus delaying the onset of clearing there - until continued seasonal warming makes the next patch go critical. Throw in the really wide seasonal temperature range expected and a multiplicity of differently coloured volatile materials and the field of possibilities seems plenty wide enough to contain these observations. It does beg the question of how complete an understanding of Pluto the severely time-limited NH observations will allow. |
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