This is an automated archive.

The original was posted on /r/askscience by /u/random_shitter on 2023-09-27 14:19:03+00:00.

I’d say it’s impossible to measure a temperature through a warmer layer without physical sampling, which we obviously didn’t do with the Sun. So how do we know the surface is only about 6k degrees whilst it is surrounded by the 1m+ degrees outer layer?