Coronet Cluster

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] It is 3.5 times closer to Earth than the Orion Nebula Cluster.^[3] The cluster's center is composed of mostly young stars.^[4] The variable T Coronae Australis is also a member, located just one arcminute from R CrA.

Coronet Cluster
The Coronet Cluster, R CrA is the central dominantly bright star, with reflection nebulae NGC 6726/NGC 6727 lit by TY CrA and HD 176386 to upper right and parts of IC 4812 at the lower right.
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
See also: Open cluster, List of open clusters