NGC 7171
Galaxy in the constellation Aquarius
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NGC 7171 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 ± 2.49 Mpc (~115 million light-years).[1] It was discovered by German–British astronomer William Herschel on 12 August 1787.
Right ascension22h 01m 02.012s[1]
Declination−13° 16′ 10.901″[1]
| NGC 7171 | |
|---|---|
NGC 7171 imaged by Pan-STARRS | |
| Observation data (J2000 epoch) | |
| Constellation | Aquarius |
| Right ascension | 22h 01m 02.012s[1] |
| Declination | −13° 16′ 10.901″[1] |
| Redshift | 0.009069[1] |
| Heliocentric radial velocity | 2719 ± 6 km/s[1] |
| Distance | 114.9 ± 8.1 Mly (35.22 ± 2.49 Mpc)[1] |
| Apparent magnitude (V) | 12.2[1] |
| Characteristics | |
| Type | SB(rs)b[1] |
| Size | ~97,600 ly (29.93 kpc) (estimated)[1] |
| Apparent size (V) | 2.6′ × 1.5′[1] |
| Other designations | |
| IRAS 21583-1330, 2MASX J22010200-1316108, MCG -02-56-005, PGC 67839[1] | |
According to the SIMBAD database, NGC 7171 is an active Seyfert II galaxy.[2]
One supernova has been observed in NGC 7171: SN 2023yoo (Type Ia, mag. 17.339) was discovered by ATLAS on 28 November 2023.[3]
