Open main menu

Astronomical object

physical body of astronomically-significant size, mass, or role, naturally occurring in a universe

Astronomical object refers to something that astronomers study. It may be any body or structure in the Observable universe. This includes objects like nebulae, star clusters, galaxy clusters, galaxies, stars, protostars, planets, satellites, comets, asteroids. Objects on the Earth are not usually included, except sometimes recently landed meteorites.