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Originally Posted by Eratosthenes
The hemisphere that will be facing the sun 24/7 all year round has its own problems of extreme temperatures etc.
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Not all year round, but only in summer, just like Antarctica from the arctic circle 67 deg S in December now, shrinking gradually to the south pole on 21 Mar, but then from 8 deg S (e.g. Bali) on 21 Dec, which means with a Uranian axial tilt the arctic circle passes over Bali.
Quote:
Originally Posted by Eratosthenes
Isn't the planet Mercury in a similar type of orbit where one side is facing away from the Sun? Temperatures must be very cold on that side, even though Mercury is very close to the sun.
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That is a different issue, that is tidal locking which does not occur at Uranus. Here I am talking about extreme axial tilt, so Earth's rotation remains 24 hours.
Quote:
Originally Posted by Eratosthenes
In Antarctica for example, the summer period can last for about 4 months where the sun never sets, whilst the winter period in dark for 8 months. Life still manages to survive
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This must be 6 months / 6 months and the dark period centered on 21 Jun is strictly 3-4 months as in a month before Sep 23 and after Mar 21 there is twilight.