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NGC 5251

From Wikipedia, the free encyclopedia
NGC 5251
The barred spiral galaxy NGC 5251.
Observation data (J2000 epoch)
ConstellationBoötes
Right ascension13h 37m 24.8276s[1]
Declination+27° 25′ 09.163″[1]
Redshift0.036558 [1]
Heliocentric radial velocity10960 ± 3 km/s[1]
Distance538.9 ± 37.7 Mly (165.22 ± 11.57 Mpc)[1]
Apparent magnitude (V)13.9[1]
Characteristics
TypeS?[1]
Size~183,100 ly (56.14 kpc) (estimated)[1]
Apparent size (V)0.7' x 0.7'[1]
Other designations
IRAS F13351+2740, 2MASX J13372485+2725097, MCG +05-32-044, PGC 48119, CGCG 161-090[1]

NGC 5251 is a barred spiral galaxy in the constellation of Boötes. Its velocity with respect to the cosmic microwave background is 11202 ± 17 km/s, which corresponds to a Hubble distance of 165.22 ± 11.57 Mpc (∼539 million light-years).[1] It was discovered by German-British astronomer William Herschel on 11 April 1785.[2]

The SIMBAD database lists NGC 5251 as a LINER galaxy, i.e. a galaxy whose nucleus has an emission spectrum characterized by broad lines of weakly ionized atoms.[3]

One supernova has been observed in NGC 5251: SN 2024bci (type Ia, mag. 18.8).[4]

See also

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References

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  1. ^ a b c d e f g h i j k "NASA/IPAC Extragalactic Database". Results for NGC 5251. Retrieved 14 August 2024.
  2. ^ Seligman, Courtney. "NGC 5251". Celestial Atlas. Retrieved 14 August 2024.
  3. ^ "NGC 5251". SIMBAD astronomical database. Strasbourg Astronomy Data Centre. Retrieved 14 August 2024.
  4. ^ "SN 2024bci". Transient Name Server. IAU. Retrieved 14 August 2024.
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