- #1
DaveC426913
Gold Member
- 22,530
- 6,193
I was looking at the http://antwrp.gsfc.nasa.gov/apod/ap060710.html" and marvelled how well-defined the Sun's surface is. I know about coronae and such, but still, it looks almost solid (though I know it's entirely gaseous).
How well-defined is the surface? Does it go from transparent to opaque over a short distance?
A bit of Googling has revealed that the Sun's core density is about 150g/cm^3, but what is the density at the surface?
How well-defined is the surface? Does it go from transparent to opaque over a short distance?
A bit of Googling has revealed that the Sun's core density is about 150g/cm^3, but what is the density at the surface?
Last edited by a moderator: