NGC 1891
 
NGC 1891 is a open cluster located in the constellation of Columba. The NGC is a catalog of 7,840 nebulae, star clusters, and galaxies. Here are the key stats on NGC 1891:
| NGC: | NGC 1891 | 
| Type: | open cluster | 
| Constellation: | Columba | 
| Right Ascension: | 05:21:44.22 | 
| Declination: | -35:47:21.50 | 
Right Ascension (RA) units = HH:MM:SS.SS
Declination (Dec) units = DD:MM:SS.SS