Yeah it can be easy to forget but thermodynamics technically only aplies to whole systems at equilibrium. Which a star which constantly produces energy through

Yeah it can be easy to forget but thermodynamics technically only aplies to whole systems at equilibrium. Which a star which constantly produces energy through fission is not. In most circumstances we get away with it, allowing us to assign temperatures to small objects or even locations in space but it's not surprising that these laws stop working at the extremes.