Particles and forces important in the Sun

The three forces

The particles we have to work with


There are, of course, more kinds of nuclei. The scheme is that in nA, the "n" tells the total number of protons and neutrons and the "A" tells how many protons: H, He, Li, Be, ... stand for 1,2,3,4,... protons. This goes up to U for 92 protons. The normal kind of uranium is 238U.

ASTR 122 course home page

Updated 11 October 2007

Davison E. Soper, Institute of Theoretical Science, University of Oregon, Eugene OR 97403 USA