Coronet Cluster | |
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Observation data (J2000.0 epoch) | |
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 |
relative scarcity of circumstellar discs | |
Other designations | R CRA, G359.93-17.85 by BDB2003 catalog |
Associations | |
Constellation | Corona Australis |
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.
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