NGC 1731
 
NGC 1731 is a star association located in the constellation of Dorado. The NGC is a catalog of 7,840 nebulae, star clusters, and galaxies. Here are the key stats on NGC 1731:
| NGC: | NGC 1731 | 
| Type: | star association | 
| Constellation: | Dorado | 
| Right Ascension: | 04:53:32.09 | 
| Declination: | -66:55:31.00 | 
| Major axis: | 4.8 ' | 
| Minor axis: | 4.5 ' | 
| Angle (major axis): | 90° | 
Right Ascension (RA) units = HH:MM:SS.SS
Declination (Dec) units = DD:MM:SS.SS