| NGC 7171 | |
| Constellation Name: | Aquarius |
| Epoch: | J2000 |
| Type: | SB(rs)b[1] |
| Dist Ly: | NaNMpc |
| Z: | 0.009069 |
| H Radial V: | 2719 ± 6 km/s |
| Appmag V: | 12.2 |
| Size V: | 2.6' x 1.5' |
| Size: | ~29.93kpc (estimated) |
NGC7171 is a barred spiral galaxy in the constellation of Aquarius. Its velocity with respect to the cosmic microwave background is 2388 ± 24 km/s, which corresponds to a Hubble distance of 35.22 ± 2.49Mpc (∼115 million light-years). It was discovered by German–British astronomer William Herschel on 12 August 1787.
According to the SIMBAD database, NGC7171 is an active Seyfert 2 galaxy.[2]
One supernova has been observed in NGC7171: SN2023yoo (typeIa, mag.17.3).[3]