alt Hacker NewsSure, but now I'm left wondering what the size of the body doing fusion is. If most of the star is glorified glowing atmosphere, I want to know the mass and radius of the fusing bits.
Replies
idiotsecant • today at 6:00 PM
Depends on the class of the star. Our sun? About 1/4 radius and in is fusion reaction. But it gets weird in other stars. In red giants the fusion zone is a very small shell around a dead core. Maybe something like earths orbit in radius, but very very thin.
There's dedicated Wikipedia articles responsive to this,
https://en.wikipedia.org/wiki/Solar_core