General Discussion

it is only objects in space. And that depends primarily on how close it is to a source of heat, such as the sun, and whether it has an internal source.

All objects in space are however subjected to the cosmic background radiation but it has an effective temperature of only about -270 C so any object not subject to star light or the equivalent would cool to about that temperature (unless it had an internal heat source).

So, no matter how cold it may seem here in winter, we are sweltering compared to what it could be!