Coronet Cluster Explained

Coronet Cluster
Epoch:J2000.0
Constellation:Corona Australis
Class:II,3,m
Dist Ly:420–550 ly
Appmag V:8
Size V:26 arcmin
Mass Msol:unknown
Radius Ly:2.1 light years
Age:0.5–2 million years
Notes:relative scarcity of circumstellar discs
Names:R CRA, G359.93-17.85 by BDB2003 catalog

The Coronet Cluster, also known as the R CrA cluster after its best-known member, is a small open cluster located about 170 parsecs away in the southern constellation Corona Australis, isolated at the edge of the Gould Belt.[1] [2] The Coronet Cluster is 3.5 times closer to the Earth than the Orion Nebula Cluster.[3] The cluster center is composed of mostly young stars.[4] The variable T Coronae Australis is also a member, only one arc minute from R CrA.

Notes and References

  1. Web site: 2016-12-30. APOD - Coronet in the Southern Crown.
  2. Sicilia-Aguilar. Aurora. Henning. Thomas. Juha´sz. Attila. Bouwman. Jeroen. Garmire. Gordon. Garmire. Audrey. Very Low Mass Objects in the Coronet Cluster: The Realm of the Transition Disks. The Astrophysical Journal. 687. 2. 1145–1167. 10 November 2008. 10.1086/591932 . 0807.2504 . 2008ApJ...687.1145S . 119208696.
  3. Web site: Coronet Cluster: A Neighbor of Star Formation (A region of star formation about 420 light years from Earth.). https://archive.today/20130217030427/http://sfccanth.wetpaint.com/photo/9452330/Coronet+Cluster:+A+Neighbor+of+Star+Formation+(A+region+of+star+formation+about+420+light+years+from+Earth.). dead. 17 February 2013. 10 Jan 2013.
  4. 2012faph.confE..29S. The star formation and disk evolution history of a sparse region: The Coronet cluster. Proceedings of the Symposium "From Atoms to Pebbles: Herschel's View of Star and Planet Formation". 29. Sicilia-Aguilar. Aurora. Henning. Thomas. Linz. Hendrik. Krause. Oliver. André. Philippe. 2012.