Coronet cluster

[Coronet Cluster]
Observation data (J2000.0 epoch)
Constellation Corona Australis
Right ascension 19h 1m 54s
Declination −36° 57.2
Distance 420-550 ly (130-170 pc)
Apparent magnitude (V) 8
Apparent dimensions (V) 26 arcmin
Physical characteristics
Mass unknown M
Radius 2.1 light years
Estimated age 0.5-2 million years
Notable features relative scarcity of circumstellar discs
Other designations R CRA, G359.93-17.85 by BDB2003 catalog

The Coronet cluster, also known as the CrA 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]

References

  1. http://apod.nasa.gov/apod/ap070921.html
  2. Sicilia-Aguilar, Aurora; Henning, Thomas; Juha´sz, Attila; Bouwman, Jeroen; Garmire, Gordon; Garmire, Audrey (10 November 2008). "VERY LOW MASS OBJECTS IN THE CORONET CLUSTER: THE REALM OF THE TRANSITION DISKS". The Astrophysical Journal. doi:10.1086/591932.
  3. "Coronet Cluster: A Neighbor of Star Formation (A region of star formation about 420 light years from Earth.)". Retrieved 10 Jan 2013.
  4. Sicilia-Aguilar, Aurora. "Star formation and disk evolution history of a sparse region: The Coronet cluster". Retrieved 10 Jan 2013.