hypothetical star
type of star
Planck star
hypothetical astronomical object
blue dwarf
hypothetical class of star
black star
gravitational object composed of matter
dark star
astronomical object described by Newtonian mechanics
Nemesis
hypothetical star orbiting the Sun, responsible of extinction events
Frozen star
hypothetical star
quasi-star
hypothetical type of extremely large and luminous star
exotic star
hypothetical compact star composed of exotic matter
iron star
hypothetical class of compact stars