NGC 3421
 
NGC 3421 is a barred spiral galaxy located in the constellation of Hydra. The NGC is a catalog of 7,840 nebulae, star clusters, and galaxies. Here are the key stats on NGC 3421:
| NGC: | NGC 3421 | 
| Type: | galaxy | 
| Galaxy type: | barred spiral | 
| Galaxy morph class: | SBa | 
| Constellation: | Hydra | 
| Surface brightness: | 24.1 mag/arcsec2 | 
| B-mag (blue): | 14.5 | 
| J-mag (IR): | 11.4 | 
| H-mag (IR): | |
| K-mag (IR): | 10.4 | 
| Right Ascension: | 10:50:57.63 | 
| Declination: | -12:26:54.70 | 
| Major axis: | 1.58 ' | 
| Minor axis: | 1.24 ' | 
| Angle (major axis): | 65° | 
| Radial velocity: | 4441 km/s | 
| Redshift: | 0.014924 | 
Right Ascension (RA) units = HH:MM:SS.SS
Declination (Dec) units = DD:MM:SS.SS