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A comment on Giant 'Great Valley' Found on Mercury. Parent comment

Re:Giant 'Great Valley' Found on Mercury by azernik on Tuesday November 22, 2016 @05:32AM (#13013105)
Probably very similar to the temperatures anywhere else on Mercury's surface - with no atmosphere, temperature doesn't vary much with altitude. So, somewhere around 500-700K during the (3-4-month-long) daytime, and around 100K at night.
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Re:Giant 'Great Valley' Found on Mercury by egfx on Tuesday November 22, 2016 @10:28AM (#13014728)
"Because the crater is deep, and the Sun never gets very high off the horizon at the pole, there are parts of the crater floor that are permanently in shadow; they literally are never illuminated by the Sun. Those spots can be very cold; well below the freezing point of water" from this article http://www.slate.com/blogs/bad_astronomy/2012/11/29/_mercury...
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Re:Giant 'Great Valley' Found on Mercury by azernik on Tuesday November 22, 2016 @10:57AM (#13014899)
That's only for polar craters, which this is not. The poles are in any case quite cold by Earth standards.
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Re:Giant 'Great Valley' Found on Mercury by egfx on Wednesday November 23, 2016 @12:48AM (#13020404)
801° fahrenheit
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