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astronomical object type
Instances
Black hole
Astrophysical phenomenon
Quasar
Active galactic nucleus (AGN) containing a supermassive black hole
group of stars
astronomical object type
unconfirmed astronomical object
astronomical object whose existence is unknown
Interstellar medium
Matter and radiation in the space between the star systems in a galaxy
Magnetar
Type of neutron star with a strong magnetic field
Binary star
System of two stars orbiting each other
Astrophysical X-ray source
Astronomical object emitting X-rays
Asterism (astronomy)
Pattern of stars recognized on Earth's night sky
Post-AGB star
Type of luminous supergiant star
Cepheid variable
Type of variable star that pulsates radially
Blazar
Very compact quasi-stellar radio source
Compact object
Classification in astronomy
Classical Kuiper belt object
Kuiper belt object, not controlled by an orbital resonance with Neptune
Classical Cepheid variable
Type of variable star
Active galactic nucleus
Compact region at a galaxy's center with abnormally high luminosity
Radio galaxy
Type of active galaxy that is very luminous at radio wavelengths
Super-Earth
Type of exoplanet
Moons of Pluto
Natural satellites orbiting Pluto
Red giant
Type of large cool star
Cosmic dust
Dust floating in space
Sub-Neptune
Planet with a radius or mass smaller than Neptune
Irregular moon
Captured satellite following an irregular orbit
near-infrared source
astronomical object that produces near-infrared light (λ < 10 µm)
Star cluster
Group of stars
high proper-motion star
total proper motion >= 50 mas/yr
Molecular cloud
Type of interstellar cloud