NGC 6604
 
NGC 6604 is a open cluster located in the constellation of Serpens. The NGC is a catalog of 7,840 nebulae, star clusters, and galaxies. Here are the key stats on NGC 6604:
| NGC: | NGC 6604 | 
| Type: | open cluster | 
| Constellation: | Serpens | 
| V-mag (visual): | 6.5 | 
| B-mag (blue): | 7.06 | 
| Right Ascension: | 18:18:02.96 | 
| Declination: | -12:14:35.20 | 
| Major axis: | 9.6 ' | 
| Radial velocity: | 16 km/s | 
| Redshift: | 0.000055 | 
Right Ascension (RA) units = HH:MM:SS.SS
Declination (Dec) units = DD:MM:SS.SS