You didn't mention black holes! I have a hypothesis that these are actually the early phases of super-giant stars - indeed, that planetoids can form the original nucleus of stars also, if they are thrown out of solar systems and end up in gas clouds. Once they aggregate sufficient mass of higher energy, lighter particles around them (both types), they then can commence the nuclear fusion.
Another element I have yet to fully integrate, but is nevertheless I think important, is that all stars are spinning. Since we are also spinning along with them, it might be hard to point at a concrete rotational velocity, although we know certainly how heavy it all is. I believe that centrifugal motion effects act to 'chromatograph' the particles inside a star, such that the lightest and most energetic (electrons, photons) are thrown out first, and then steadily heavier ones are thrown out as the density increases both from fusion and from the emission of lighter matter. This explains in part the slow process of colour change, that can reveal the age of a star, not just the 'explosion' and heat effect, but also inertial effects. I think that this 'chromatographic' process is important to understand and is also partly where my previous paragraph's ideas originate.