Jump to content

NGC 7466

From Wikipedia, the free encyclopedia
NGC 7466
The spiral galaxy NGC 7466.
Observation data (J2000 epoch)
ConstellationPegasus
Right ascension23h 02m 03.4251s[1]
Declination+27° 03′ 09.491″[1]
Redshift0.025044 [1]
Heliocentric radial velocity7508 ± 3 km/s[1]
Distance344.4 ± 24.1 Mly (105.60 ± 7.40 Mpc)[1]
Apparent magnitude (V)13.5[1]
Characteristics
TypeSb[1]
Size~138,000 ly (42.32 kpc) (estimated)[1]
Apparent size (V)1.5' x 0.5'[1]
Other designations
IRAS 22596+2647, 2MASX J23020343+2703093, IC 5281, UGC 12319, MCG +04-54-017, PGC 70299, CGCG 475-023[1]

NGC 7466 is a spiral galaxy in the constellation of Pegasus. Its velocity with respect to the cosmic microwave background is 7160 ± 25 km/s, which corresponds to a Hubble distance of 105.60 ± 7.40 Mpc (∼344 million light-years).[1] It was discovered by French astronomer Édouard Stephan on 20 September 1873.[2] It was independently rediscovered by the French astronomer Guillaume Bigourdan on 19 November 1895 and listed as IC 5281 in the Index Catalogue.[2]

NGC 7466 is listed as a Seyfert II Galaxy, i.e. it has a quasar-like nucleus with very high surface brightnesses whose spectra reveal strong, high-ionisation emission lines, but unlike quasars, the host galaxy is clearly detectable.[1]

NGC 7466 is a galaxy with a nucleus that has excessive amounts of ultraviolet emissions, and is thus listed in the Markarian Galaxy Catalog as Mrk 1127.[1]

One supernova has been observed in NGC 7466: SN 2023uu (type Ia, mag 20.1).[3]

See also

[edit]

References

[edit]
  1. ^ a b c d e f g h i j k l m "NASA/IPAC Extragalactic Database". Results for NGC 7466. Retrieved 7 August 2024.
  2. ^ a b Celestial Atlas entry for NGC 4734. Retrieved 7 August 2024.
  3. ^ Transient Name Server entry for SN 2023uu. Retrieved 7 August 2024.
[edit]