NGC 884
Double Cluster
 
NGC 884 is a open cluster located in the constellation of Perseus. The NGC is a catalog of 7,840 nebulae, star clusters, and galaxies. Here are the key stats on NGC 884:
| NGC: | NGC 884 | 
| Common name: | Double Cluster | 
| Type: | open cluster | 
| Constellation: | Perseus | 
| V-mag (visual): | 3.8 | 
| B-mag (blue): | 4.4 | 
| Right Ascension: | 02:22:32.10 | 
| Declination: | 57:08:38.80 | 
| Major axis: | 10.5 ' | 
| Radial velocity: | -45 km/s | 
| Redshift: | -0.00014 | 
Right Ascension (RA) units = HH:MM:SS.SS
Declination (Dec) units = DD:MM:SS.SS