Astrophysics (index)

Stellar Association

(like a large open cluster but even less tightly bound)

A Stellar Association is a loose group of stars of similar Spectral Class and of recent origin, thought to be the results of a Molecular Cloud. It is thought that most stars were born in stellar associations. Associations are typed by their stellar class: OB Association (with both O-Type Stars (O) and B-Type Stars (B)), R, and T (with T-Tauri Star (TTS)).


Referenced by:
OB Association