Thread:Assaltwaffle/@comment-24503208-20180112071443/@comment-24503208-20180130024706

Are we sure that is truly the case?

I mean I have other sources that describe this relationship between mass and density. Not to mention to find density, we need to find the star's volume.

Now, from various measurements - which you will learn about in your course - you estimate the mass of the sun to be 1.99 x 1030 kg (or simply, look it up in an astronomy table, like the one at the end of your textbook!). Then, the average density of the sun is: average density of the sun = total mass of sun/total volume of sun=1.41x1012 kg/(km)3.

http://lasp.colorado.edu/~bagenal/MATH/supplement/density.html