Project a pig P from a spacecraft in near-Earth orbit. Assume that P is rotating rapidly (or, equivalently, that it is perfectly conductive). What temperature will P reach when it is in radiative equilibrium with the Sun on the one hand and the CRB on the other? The Stefan-Boltzmann law gives 278°K (at least according to Wikipedia) if the pig is a black body without an atmosphere, which seems reasonable though I haven't actually checked the calculations in detail. This question may be turning into "how un-black is a pig?". Presumably one would need to look at the albedo of pigs (either black ones or white ones) at different wavelengths. Any references would be welcome: people might have more figures on them than pigs, and, both being mammals, will probably have similar radiative properties. If a body absorbs 30% of the radiation that a black body would, will it also emit 30% of the radiation that a black body would, or is there no necessary connection between these figures?