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astronomical object type
Instances
Exoplanet
Planet outside the Solar System
Earth analog
Planet with environment similar to Earth's
infrared source
astronomical object that produces infrared light
Blazar
Very compact quasi-stellar radio source
Quasar
Active galactic nucleus (AGN) containing a supermassive black hole
Dark nebula
Type of interstellar cloud that obscures visible light
gamma-ray source
astronomical object type
possible red giant branch star
astronomical object type
unconfirmed astronomical object
astronomical object whose existence is unknown
red giant branch star
Kuiper belt object
type of astronomical object
very red source
astronomical object type
Black hole
Astrophysical phenomenon
Star cluster
Group of stars
Asterism (astronomy)
Pattern of stars recognized on Earth's night sky
Classical Cepheid variable
Type of variable star
Cepheid variable
Type of variable star that pulsates radially
compact group of galaxies
astronomical object type
Molecular cloud
Type of interstellar cloud
Interstellar medium
Matter and radiation in the space between the star systems in a galaxy
Gamma-ray burst
Flash of gamma rays from a distant galaxy
Binary star
System of two stars orbiting each other
Cosmic dust
Dust floating in space
Moons of Pluto
Natural satellites orbiting Pluto
Open cluster
Type of star cluster
Astrophysical X-ray source
Astronomical object emitting X-rays
Super-Earth
Type of exoplanet
gravitational wave event
physical event
Red giant
Type of large cool star
Impact crater
Circular depression in a solid astronomical body formed by the impact of a smaller object