Stellar association

Map of the area with the Scorpius–Centaurus Association.^[1]

A stellar association is a loose star cluster, looser than both open clusters and globular clusters. Stellar associations usually have from 10 to 100 or more stars.

The stars have a common origin. They are moving together through space. Stellar associations were first discovered by the Soviet Armenian astronomer Victor Ambartsumian in 1947.^[2]^[3]

Stellar Association Media

Main associations of the galactic plane in the night sky
OB within 1250 pc (Quintana)

References

↑ de Zeeuw, P.T.. A Hipparcos Census of Nearby OB Associations. Astronomical Journal 117 (1) (1999). p. 354–399. doi:10.1086/300682.
↑ History of Astronomy: An Encyclopedia (2011)Routledge. p. 10. ISBN 9781136508349.
↑ Saxon, Wolfgang (15 August 1996). "Viktor A. Ambartsumyan, 87, Expert on Formation of Stars". The New York Times: 22. https://www.nytimes.com/1996/08/15/world/viktor-a-ambartsumyan-87-expert-on-formation-of-stars.html.

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[1] Zeeuw, P.T.. A Hipparcos Census of Nearby OB Associations. Astronomical Journal 117 (1) (1999). p. 354–399. doi:10.1086/300682.

[2] History of Astronomy: An Encyclopedia (2011)Routledge. p. 10. ISBN 9781136508349.

[3] Saxon, Wolfgang (15 August 1996). "Viktor A. Ambartsumyan, 87, Expert on Formation of Stars". The New York Times: 22. https://www.nytimes.com/1996/08/15/world/viktor-a-ambartsumyan-87-expert-on-formation-of-stars.html.

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