…in what proximity would you have to be to the sun and how fast would you have to be spinning (like a rotisserie chicken) so that your light side didn’t burn and your dark side didn’t freeze; rotating just enough to keep a relatively stable temperature?
Absolutely absurd, I know but this question somehow popped into my head and won’t leave. 😆🐔🔥🧊
That’s a good starting point, but caveats:
My bet is that most of our thermal circulation is via the movement of our blood. That’s probably not directly analogous to spacecraft.
If one isn’t just talking thermal, we do burn at 1AU. Go lie in the sun without cover long enough – especially if you’re pale-skinned – long enough, and you’ll get burned. Without the atmosphere, we’d be hit by more UV light, too.
Without the atmosphere, UV is going to be among the least dangerous wavelengths for you to have to worry about.