NGC 6603
 
NGC 6603 is a open cluster located in the constellation of Sagittarius. The NGC is a catalog of 7,840 nebulae, star clusters, and galaxies. Here are the key stats on NGC 6603:
| NGC: | NGC 6603 | 
| Type: | open cluster | 
| Constellation: | Sagittarius | 
| V-mag (visual): | 11.1 | 
| Right Ascension: | 18:18:26.97 | 
| Declination: | -18:24:21.80 | 
| Major axis: | 4.2 ' | 
| Radial velocity: | 18 km/s | 
| Redshift: | 0.00006 | 
Right Ascension (RA) units = HH:MM:SS.SS
Declination (Dec) units = DD:MM:SS.SS