Astrophysics (Index)About

moving group

(moving cluster)
(observed group of stars with similar motion)

A moving group is an observed group of stars that are moving in pretty much the same direction. It may be identified by checking the proper motion of stars in a portion of the sky, and checking the distance by some means. There may be other stars visible in the same region of the sky that do not share the same motion. Such moving groups are considered the remnant of an open cluster or stellar association that has spread out, and are presumed to have a common origin, i.e., formed at roughly the same time in the same star-forming region.

(stars,galaxies,star clusters)
Further reading:

Referenced by pages:
rare designator prefixes
stellar age determination
stellar association
stellar cluster (SC)