celestial bodies

Definition/Scope: Any aggregations of matter in space constituting a unit for astronomical study, such as the sun, moon, a planet, comet, star, or nebula.

Used For:

heavenly bodies

Narrower Terms:

asteroids
black holes (astronomy)
comets
galaxies
meteorites
meteoroids
moon
natural satellites
near-earth objects
nebula
planets
solar system
stars
sun