NGC 1845
 
NGC 1845 is a star association located in the constellation of Mensa. The NGC is a catalog of 7,840 nebulae, star clusters, and galaxies. Here are the key stats on NGC 1845:
| NGC: | NGC 1845 | 
| Type: | star association | 
| Constellation: | Mensa | 
| V-mag (visual): | 10.2 | 
| B-mag (blue): | 10.3 | 
| Right Ascension: | 05:05:45.01 | 
| Declination: | -70:34:53.80 | 
| Major axis: | 8.9 ' | 
| Minor axis: | 5.6 ' | 
| Angle (major axis): | 30° | 
Right Ascension (RA) units = HH:MM:SS.SS
Declination (Dec) units = DD:MM:SS.SS