Orion association | Article about Orion association by The Free Dictionary
Orion association (I Orionis) A large OB-association (see association) that contains over 1000 stars and lies in the region of the Orion nebula. There are at least three clusters in the association: the Lambda (λ) Orionis cluster, the Belt group around Epsilon (Ɛ) Orionis, and the Trapezium cluster.
Collins Dictionary of Astronomy © Market House Books Ltd, 2006
References in periodicals archive
To the west-southwest is the mighty Orion Association
, centered some 1,500 light-years away.
In the opposite direction, on the Orion Arm (or "Spur"), we see the Orion Association
, responsible for most of the Hunter's bright stars.
These are members of the Orion Association
, hot young stars in the nebula-strewn edge of the Orion Arm of our galaxy -- the spiral arm in which we ourselves are located, though more toward its inner side.