NGC 4609
Coalsack Cluster
 
NGC 4609 is a open cluster located in the constellation of Crux. The NGC is a catalog of 7,840 nebulae, star clusters, and galaxies. Here are the key stats on NGC 4609:
| NGC: | NGC 4609 | 
| Common name: | Coalsack Cluster | 
| Type: | open cluster | 
| Constellation: | Crux | 
| V-mag (visual): | 6.9 | 
| B-mag (blue): | 7.32 | 
| Right Ascension: | 12:42:16.83 | 
| Declination: | -62:59:44.70 | 
| Major axis: | 5.4 ' | 
| Radial velocity: | 22 km/s | 
| Redshift: | 0.000073 | 
Right Ascension (RA) units = HH:MM:SS.SS
Declination (Dec) units = DD:MM:SS.SS