NGC 828 is a spiral galaxy in the constellation of Andromeda. Its velocity with respect to the cosmic microwave background is 5118 ± 17 km/s, which corresponds to a Hubble distance of 75.49 ± 5.29 Mpc (∼246 million light-years).[1] It was discovered by German-British astronomer William Herschel on 18 October 1786.[2]

NGC 828
The spiral galaxy NGC 828.
Observation data (J2000 epoch)
ConstellationAndromeda
Right ascension02h 10m 09.57s[1]
Declination+39° 11′ 25.3″[1]
Redshift0.017846[1]
Heliocentric radial velocity5350 ± 4 km/s[1]
Distance246.2 ± 17.3 Mly (75.49 ± 5.29 Mpc)[1]
Apparent magnitude (V)12.3[1]
Characteristics
TypeSa? pec[1]
Size~227,600 ly (69.77 kpc) (estimated)[1]
Apparent size (V)2.5' x 1.6'[1]
Other designations
IRAS 02071+3857, 2MASX J02100957+3911253, UGC 1655, MCG +06-05-092, PGC 8283, CGCG 522-125[1]

NGC 828 is a LINER galaxy, i.e. it has a type of nucleus that is defined by its spectral line emission which has weakly ionized or neutral atoms, while the spectral line emission from strongly ionized atoms is relatively weak.[1] In addition, NGC 828 is classified as a radio galaxy.[3]

One supernova has been observed in NGC 828: SN 2024lea (type Ib, mag. 19.1).[4]

See also

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References

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  1. ^ a b c d e f g h i j k l "NASA/IPAC Extragalactic Database". Results for NGC 828. Retrieved 31 July 2024.
  2. ^ Celestial Atlas entry for NGC 4744. Retrieved 31 July 2024.
  3. ^ SIMBAD entry for NGC 828. Retrieved 31 July 2024.
  4. ^ Transient Name Server entry for SN 2024lea. Retrieved 31 July 2024.
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