Jump to content

NGC 7171

From Wikipedia, the free encyclopedia
NGC 7171
The barred spiral galaxy NGC 7171.
Observation data (J2000 epoch)
ConstellationAquarius
Right ascension22h 01m 02.01s[1]
Declination−13° 16′ 11.1″[1]
Redshift0.009069[1]
Heliocentric radial velocity2719 ± 6 km/s[1]
Distance114.9 ± 8.1 Mly (35.22 ± 2.49 Mpc)[1]
Apparent magnitude (V)12.2[1]
Characteristics
TypeSB(rs)b[1]
Size~97,600 ly (29.93 kpc) (estimated)[1]
Apparent size (V)2.6' x 1.5'[1]
Other designations
IRAS 21583-1330, 2MASX J22010200-1316108, MCG -02-56-005, PGC 67839[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]

See also

[edit]

References

[edit]
  1. ^ a b c d e f g h i j k "NASA/IPAC Extragalactic Database". Results for NGC 7171. Retrieved 29 July 2024.
  2. ^ SIMBAD entry for NGC 7171. Retrieved 29 July 2024.
  3. ^ Transient Name Server entry for SN 2023yoo. Retrieved 29 July 2024.
[edit]