Astronomical object
An astronomical object (alternately called a celestial object or celestial body) is an object or cohesive group of objects demonstrated to exist in the observable universe. Examples include galaxies; stars, star clusters, and solar systems; nebulae; and planets and other planetoids, such as moons, asteroids, and comets.1
Chart of astronomical objects by scale
| Universal | Galactic | Stellar | Planetary | Planetesimal | Artificial |
|---|---|---|---|---|---|
References
- ↑ Astronomical object, Wikipedia.
