NGC 820

NGC 820
SDSS image of NGC 820
Observation data (J2000 epoch)
ConstellationAries
Right ascension02h 08m 24.97482s
Declination+14° 20′ 58.5388″
Redshift0.01477
Heliocentric radial velocity4395 km/s
Distance213.5 Mly (65.46 Mpc)
Group or clusterNGC 820 Group (LGG 48)
Apparent magnitude (B)13.7
Characteristics
TypeSb
Size~82,900 ly (25.42 kpc) (estimated)
Other designations
IRAS 02057+1406, UGC 1629, MCG +02-06-036, PGC 8165, CGCG 438-031

NGC 820 is a spiral galaxy located in the constellation Aries about 210 million light-years from the Milky Way. It was discovered by British astronomer John Herschel on 7 September 1828.

NGC 820 Group

NGC 820 is the largest and brightest of a trio of galaxies. The other two galaxies in the NGC 820 group (also known as LGG 48) are UGC 1630 and UGC 1689.

Supernova

One supernova has been observed in NGC 820: SN 2002ea (Type IIn, mag. 17.7) was discovered on 21 July 2002 by Tim Puckett and Jack Newton.

See also

References

  1. 1 2 Brown, A. G. A.; et al. (Gaia collaboration) (August 2018). "Gaia Data Release 2: Summary of the contents and survey properties". Astronomy & Astrophysics. 616. A1. arXiv:1804.09365. Bibcode:2018A&A...616A...1G. doi:10.1051/0004-6361/201833051.
  2. 1 2 3 4 5 "NGC 820". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2020-05-24.
  3. 1 2 Tully, R. Brent; Courtois, Hélène M.; Sorce, Jenny G. (2016). "Cosmicflows-3". The Astronomical Journal. 152 (2): 21. arXiv:1605.01765. Bibcode:2016AJ....152...50T. doi:10.3847/0004-6256/152/2/50. S2CID 250737862. 50.
  4. 1 2 "Results for object NGC 0820". NASA/IPAC Extragalactic Database. NASA and Caltech. Retrieved 7 May 2025.
  5. ↑ Ford, Dominic. "The galaxy NGC 820 - In-The-Sky.org". in-the-sky.org. Retrieved 2020-03-18.
  6. ↑ Rojas, Sebastián García. "Galaxy NGC 820 - Spiral Galaxy in Aries Constellation". Telescopius. Retrieved 2020-03-18.
  7. ↑ "Revised NGC Data for NGC 820". spider.seds.org. Retrieved 2020-03-18.
  8. ↑ Garcia, A. M. (1993). "General study of group membership. II. Determination of nearby groups". Astronomy and Astrophysics Supplement Series. 100: 47. Bibcode:1993A&AS..100...47G.
  9. ↑ Puckett, T.; Newton, J. (2002). "Supernova 2002ea in NGC 820". International Astronomical Union Circular. 7936: 1. Bibcode:2002IAUC.7936....1P.
  10. ↑ "SN 2002ea". Transient Name Server. IAU. Retrieved 7 May 2025.