Besides, for space craft, in reality, you might actually have heat radiators that would glow when trying to get rid of high amounts of heat.
^Heat radiators, by their nature, are not in equilibrium with their environment.
Although planets and stars are neither in thermal equilibrium with their surroundings nor perfect black bodies, black body radiation is used as a first approximation for the energy they emit.[5] Black holes are near-perfect black bodies, and it is believed that they emit black-body radiation (called Hawking radiation), with a temperature that depends on the mass of the hole.[6]
They wouldn't glow very bright, just a dull red, which would probably be washed out by a weak flashlight. http://www.projectrho.com/public_html/rocket/basicdesign.php#dullred
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