Cool science site...
Hi All
Larry Bogan has a cool site with all sorts of cool space science stuff.
For example he has a neat discussion of Keplerian orbits with some very helpful graphics.
Also he has a page that calculates various stellar features (B-V, BC, Mv, Mbol) from effective Temperature and radius of a star. And with a bit of manipulation you can do the reverse yourself.
Also some cool summaries of protostar collapse, a bio of James Jeans, all sorts of naked eye astro-stuff and so forth.
Coolness.
Adam