star cluster
large group of stars
Hyades
star cluster
Orion Nebula
diffuse nebula
Flame Nebula
emission nebula in the constellation Orion
Iris Nebula
dark nebula
Blue blobs
Type of stellar system
open cluster
group of "sibling" stars that are loosely gravitationally bound to one another
Omega Centauri
globular cluster in the constellation Centaurus
Quintuplet cluster
open cluster in the constellation Sagittarius
stellar association
very loosely associated star cluster
Phoenix Dwarf
low-surface-brightness galaxy
globular cluster
spherical collection of stars
Trapezium Cluster
open cluster of star
The Magnificent Seven
group of isolated young cooling neutron stars
Tadpole Nebula
bright nebula and open cluster in Auriga
Coronet cluster
star in the constellation Corona Australis
Serpens South star cluster
relatively dense cluster of more than 600 young stars
Sagittarius A* cluster
star cluster orbiting Sagittarius A*
Galactic ring
ring-shaped substructure in some galaxies
super star cluster
astronomical object type
Omega Nebula
H II region in the constellation Sagittarius, discovered by Philippe Loys de Chéseaux
Trifid Nebula
HII region
Soul Nebula
nebula in the constellation Cassiopeia