PPT Slide
Our model of stellar evolution has assumed spherical
symmetry: no rotation, no magnetic effects, no
irregularities, etc. And, as we’ve seen, this model
provides us with a powerful understanding of the life
and death of stars. Nevertheless our model is certainly
not the final picture or the be-all and end-all. (For
example, it cannot treat binary stars and it cannot
explain the origin of planets.) The following pictures
demonstrate how dramatic the deviations from spherical