[SOLVED] Hertzsprung-Russell diagram

[aidan]

Hey there,
I'm trying to get some information that will help me demonstrate the star
groups that emerge when many stars are plotted on a Hertzsprung-Russell
diagram.
Does anyone have any information on this?
thnks



oh yeah..I'm new...please dont hurt me.

[Labguy]

Here are two.

http://ast.star.rl.ac.uk/hr.html

http://www.astronomy.ohio-state.edu/~pogge/Ast162/Unit1/hrdiag.html