AndyG33KatWork@infosec.exchange
Jul 22, 2025, 11:02 PMReplies
Pete Alex Harris🦡🕸️🌲/∞🪐∫petealexharris@mastodon.scotJul 23, 2025, 7:35 AM@G33KatWork @zuthal @samim
I think it's only dependent on temperature, not directly coming from the fusion, which is happening way down in the core. It takes a while for energy to make its way out of there to the Sun's surface through a lot of hot, dense plasma.
Veronica Olsenveronica@mastodon.onlineJul 23, 2025, 4:18 PM@petealexharris @G33KatWork @zuthal @samim Yeah, that's right. It's also related to the temperature on the surface, not in the core where the fusion happens, which requires *a lot* more heat and pressure.
The light spectrum of the sun has absorption lines for the various elements too. It's how we get the red/blueshift of distant stars to determine their relative radial velocity from our point of view.