Prompted by Nebel's crank postings on this subject Please Register or Log in to view the hidden image! , I had a look at the following Wiki article: https://en.wikipedia.org/wiki/Asteroseismology It's actually rather interesting for someone like me who has studied a bit of atomic quantum theory. Stellar oscillations are very much like electron orbitals, it seems, involving spherical harmonics - well, I suppose they, wouldn't they? Please Register or Log in to view the hidden image! . One interesting thing hinted at but not described is what happens in the presence of spin. The situation in non-rotating stars is explained, and the hint is that when there is rotation the presence of a preferred axis somehow alters the oscillation pattern. I am tempted to see this as some sort of analogy with space quantisation in atoms, but I am not sure what mechanism would resolve the "degeneracy", as it were, of the spherical harmonics. The source of the excitation of the oscillations is also interesting, but quite a complicated story: there seem to be four different ones, depending on the type of star in question.