Dan Tibbets wrote:I'm not sure how quickly you would freeze if exposed to the vacuum of deep space.
Basically, this is determined by the
Stefan–Boltzmann law. This describes the amount of power a black body radiates at a given temperature. In the real world, this is modified by the reflectivity or
albedo of the object in question, the temperature of its surroundings, and their physical geometric arrangement.
Basically, the Stefan–Boltzmann law states that an object at a certain temperature emits a certain power isotropically. Any local objects nearby will also obey the same law. The temperature of the object in question is just the balance of the differential equations of the local objects close enough to matter. Basically, how hot are your neighbors, how shiny are you all, and how much solid angle to you all occupy.
For sections of solid angle looking out into deep space, you can use the
Cosmic microwave background as the effective temperature.
You will find that things cool down super fast when facing deep space and heat up super fast when facing sol. This is the main reason behind 'space blankets' you see on satellites, if you drastically reduce the surface reflectivity you drastically reduce the energy transfer between to given objects.