compact star
classification in astronomy
black dwarf
stellar remnant; white dwarf that has cooled sufficiently to no longer emit significant light
Dark-energy star
object composed of dark energy that outwardly resembles a black hole
stellar black hole
black hole formed by a collapsed star
white dwarf
type of stellar remnant composed mostly of electron-degenerate matter
neutron star
collapsed core of a massive star consisting mainly of neutrons
black neutron star
Stars more massive than neutron stars, but less massive than black holes
exotic star
hypothetical compact star composed of exotic matter