NGC 7171 | |
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![]() The barred spiral galaxy NGC 7171. | |
Observation data ( J2000 epoch) | |
Constellation | Aquarius |
Right ascension | 22h 01m 02.01s [1] |
Declination | −13° 16′ 11.1″ [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' x 1.5' [1] |
Other designations | |
PGC 67839, MCG -02-56-005, IRAS 21583-1330, 2MASX J22010200-1316108 [1] |
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.
According to the SIMBAD database, NGC 7171 is an active Seyfert 2 galaxy. [2]
One supernova has been observed in NGC 7171: SN 2023yoo ( type Ia, mag. 17.3). [3]
NGC 7171 | |
---|---|
![]() The barred spiral galaxy NGC 7171. | |
Observation data ( J2000 epoch) | |
Constellation | Aquarius |
Right ascension | 22h 01m 02.01s [1] |
Declination | −13° 16′ 11.1″ [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' x 1.5' [1] |
Other designations | |
PGC 67839, MCG -02-56-005, IRAS 21583-1330, 2MASX J22010200-1316108 [1] |
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.
According to the SIMBAD database, NGC 7171 is an active Seyfert 2 galaxy. [2]
One supernova has been observed in NGC 7171: SN 2023yoo ( type Ia, mag. 17.3). [3]