interstellar medium
matter and radiation in the space between the star systems in a galaxy
Crescent Nebula
supernova remnant in the constellation Cygnus
Pelican Nebula
H II region in the constellation Cygnus
Iris Nebula
dark nebula
Gum Nebula
supernova remnant
Rigel
star system in the constellation Orion
Rosette Nebula
nebula in the Milky Way Galaxy
Ghost Nebula
nebula in the constellation Cepheus
photodissociation region
type of interstellar medium region
Homunculus Nebula
emission nebula in the constellation Carina
dark matter
mysterious non-luminous matter (and/or radiation) comprising most of the matter in our observable universe
RS Puppis
variable star in the constellation Puppis
S Coronae Australis
variable star in the constellation Corona Australis
Boomerang Nebula
protoplanetary nebula
Mayall II
globular cluster
FU Orionis
variable star in the constellation Orion
Tadpole Nebula
bright nebula and open cluster in Auriga
Toby Jug Nebula
emission nebula and star in the constellation Carina
Pyxis globular cluster
Globular cluster in the constellation Pyxis
Antares
red supergiant star in the constellation Scorpius
Carina Nebula
H II region in the constellation Carina
Necklace Nebula
planetary nebula in the constellation Sagitta
Tulip Nebula
H II region in the constellation Cygnus
Lockman Hole
area of sky useful for deep space observations due to low levels of neutral hydrogen gas