astronomical object
physical body of astronomically-significant size, mass, or role, naturally occurring in a universe
interstellar medium
matter and radiation in the space between the star systems in a galaxy
void
vast empty spaces between filaments which contain very few or no galaxies
interplanetary dust cloud
cosmic dust in the space between the planets of the solar system
celestial body
celestial bodies visible to the naked eye
missing mass
astronomical objects that are inaccessible to regular observation but exhibit gravitational effects
infrared dark cloud
cold, dense region of a giant molecular cloud
IM Lupi
astronomical object in the constellation Lupus
ultra-cool dwarf
type of stellar or sub-stellar object
star-forming region
region of the celestial sphere within which predominately very young stellar objects (YSOs) are located and their formation is likely occurring
Helix Nebula
planetary nebula
astrophysical jet
beam of ionized matter flowing along the axis of a rotating astronomical object
The Eastern Veil
astronomical object
central massive object
central object of a galaxy
Fermi Bubbles
two large elliptical lobe structures of energetic plasma astride the Milky Way’s core, which emit gamma- and X-rays
Odd radio circle
unexplained circular astronomical object detected only by radio waves
star
astronomical object consisting of a luminous spheroid of plasma held together by its own gravity
gravitational lens
distribution of matter between a distant light source and a observer
Dragon Storm
thunderstorm on Saturn
Galilean moons
four largest moons of Jupiter
meteorite
piece of solid matter from outer space that has impacted the Earth
gamma-ray burst progenitors
types of celestial objects
Kirkwood gap
gap or dip in the distribution of the semi-major axes of the orbits of main-belt asteroids
binary system
system of two astronomical bodies which orbit each other
spiral arm
component a of spiral galaxy
damped Lyman-alpha system
concentrations of neutral hydrogen gas detected in the spectra of quasars
dropout
in astronomy, type of radiation source
extraterrestrial vortex
cyclone on celestial body other than Earth
primary body
main physical body of a gravitationally bound, multi-object system
Morning Star
planet Venus before sunrise
secondary body
object that orbits a primary body
Radcliffe wave
coherent, wave-shaped gaseous structure in the Milky Way
constellation
image on the celestial sphere consisting of stars according to any current of historical system or description
emission nebula
cloud of ionized gas emitting light of various colors
deep-sky object
any astronomical object that is not an individual star
interstellar cloud
accumulation of gas, plasma and dust in a galaxy
astrophysical X-ray source
astronomical object emitting X-rays
large quasar group
large astronomical structure
Mystic Mountain
gas and dust formation in the Carina Nebula
bipolar outflow
two continuous flows of gas from the poles of a star
Taurus Void
intergalactic void between the Perseus–Pisces and Virgo superclusters
neutron star
collapsed core of a massive star consisting mainly of neutrons
wormhole
hypothetical topological feature of spacetime
Magellanic Bridge
stream of neutral hydrogen gas linking the two Magellanic clouds
star system
type of astronomical object, stars which orbit each other
galactic halo
component of a galaxy
dark flow
possible non-random component of the peculiar velocity of galaxy clusters
Tidal tail
thin, elongated region of stars and interstellar gas that extends into space from a galaxy