NGC 5020

NGC 5020
NGC 5020 imaged by SDSS
Observation data (J2000 epoch)
ConstellationVirgo
Right ascension13h 12m 39.8542s
Declination+12° 35′ 59.273″
Redshift0.011214±0.00000700
Heliocentric radial velocity3,362±2 km/s
Distance176.2 ± 12.4 Mly (54.02 ± 3.79 Mpc)
Group or clusterNGC 5020 group (LGG 335)
Apparent magnitude (V)12.5
Characteristics
TypeSAB(rs)bc
Size~181,400 ly (55.62 kpc) (estimated)
Apparent size (V)3.2′ × 2.7′
Other designations
IRAS 13102+1251, UGC 8289, MCG +02-34-003, PGC 45883, CGCG 072-024

NGC 5020 is a barred spiral galaxy in the constellation of Virgo. Its velocity with respect to the cosmic microwave background is 3,663±21 km/s, which corresponds to a Hubble distance of 176.2 ± 12.4 Mly (54.02 ± 3.79 Mpc). It was discovered by German-British astronomer William Herschel on 12 April 1784.

NGC 5020 is an active galaxy nucleus candidate, i.e. it has a compact region at the center of a galaxy that emits a significant amount of energy across the electromagnetic spectrum, with characteristics indicating that this luminosity is not produced by the stars.

NGC 5020 group

According to A.M. Garcia, NGC 5020 is the largest and brightest galaxy in a group of galaxies that bears its name, the NGC 5020 group (also known as LGG 335). The other two galaxies in the group are UGC 8253 [d] and UGC 8255 [d].

Supernovae

Two supernovae have been observed in NGC 5020:

See also

References

  1. 1 2 3 4 5 6 7 8 9 10 11 "Results for object NGC 5020". NASA/IPAC Extragalactic Database. NASA and Caltech. Retrieved 25 August 2025.
  2. 1 2 "LGG 335". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 25 August 2025.
  3. ↑ Herschel, William (1786). "Catalogue of One Thousand New Nebulae and Clusters of Stars". Philosophical Transactions of the Royal Society of London. 76: 457–499. Bibcode:1786RSPT...76..457H. doi:10.1098/rstl.1786.0027.
  4. ↑ Seligman, Courtney. "New General Catalogue Objects: NGC 5020". Celestial Atlas. Retrieved 25 August 2025.
  5. ↑ "NGC 5020". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 25 August 2025.
  6. ↑ 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.
  7. ↑ Mueller, J.; Mendenhall, J. D.; Filippenko, A. V.; Shields, J. C. (1 February 1991). "Supernova 1991J in NGC 5020". International Astronomical Union Circular (5196): 1. Bibcode:1991IAUC.5196....1M.
  8. ↑ "SN 1991J". Transient Name Server. IAU. Retrieved 25 August 2025.
  9. ↑ Jin, Z.-w.; Gao, X.; Migotto, K.; Fremling, C. (1 January 2015). "Supernova 2015D in NGC 5020 = PSN J13124116+1236018". Central Bureau Electronic Telegrams (4051): 1. Bibcode:2015CBET.4051....1J.
  10. ↑ "SN 2015D". Transient Name Server. IAU. Retrieved 25 August 2025.