stellar association
very loosely associated star cluster
Sagittarius Star Cloud
Star cloud in the constellation Sagittarius
Pleiades group
kinematic group of stars
Columba association
association of nearby stars
OB association
group of early-class stars weakly gravitationally bounded
moving group
stellar association coherently drifting through the galaxy
Ursa Major Moving Group
stellar moving group
Hyades Stream
moving group in the constellation Tarus
Tucana-Horologium association
stellar association
stellar stream
association of stars orbiting a galaxy