On a page such as this, from Bahcall's website, you can get links to the input parameters, and the publications describing the progressive refinements to the various standard solar models. And sites such as this will give you a thumbnail sketch of the history behind their development, with references to the key original papers. But does anyone have a good site which describes, at a physics undergraduate university level, an overview of the conservation laws used, the energy transport equations, and the limitations wrt main sequence stars (i.e. not degenerate stars, or supernovae). If such a site also notes the key differences between stellar models and gas giant planet models, so much the better! Many thanks, in advance.