Stars have a lithosphere?
lithosphere - the rigid outer part of the earth or planet, consisting of the crust and upper mantle.
Source for the claim please?
said,
"Stars have a lithosphere?" History of the Gaseous Sun with Dr. Robitaille
https://youtu.be/GxEokSd-o5o Dr. Robitaille has many papers on how stars have a lithosphere.
Though it's really very simple.
If stars where a gas it would defy every thermodynamic law.
Example: What holds a star together with a massive nuclear core?