NGC 5082

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Wikipedia

NGC 5082
NGC 5082 imaged by DSS
Observation data (J2000 epoch)
ConstellationCentaurus
Right ascension13h 20m 40.0345s[1]
Declination−43° 41′ 59.799″[1]
Redshift0.012996±0.000140[1]
Heliocentric radial velocity3,896±42 km/s[1]
Distance152.97 ± 3.46 Mly (46.900 ± 1.060 Mpc)[1]
Group or clusterNGC 5082 group (LGG 348)
Apparent magnitude (V)13.75[1]
Characteristics
TypeSB0^0(rs)[1]
Size~112,300 ly (34.42 kpc) (estimated)[1]
Apparent size (V)1.7′ × 1.0′[1]
Other designations
ESO 269- G 089, 2MASX J13204003-4341598, MCG -07-27-053, PGC 46566[1]

NGC 5082 is a lenticular galaxy in the constellation of Centaurus. Its velocity with respect to the cosmic microwave background is 4,153±46 km/s, which corresponds to a Hubble distance of 199.8 ± 14.3 Mly (61.25 ± 4.38 Mpc).[1] However, three non-redshift measurements give a closer mean distance of 152.97 ± 3.46 Mly (46.900 ± 1.060 Mpc).[2] It was discovered by British astronomer John Herschel on 3 June 1834.[3]

NGC 5082 has a possible active galactic nucleus, 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.[4][5]

NGC 5082 group

NGC 5082 is a member of a small group of galaxies named after it. The other two galaxies in the NGC 5082 group (also known as LGG 348) are ESO 270-7 and ESO 270-14.[6]

Supernova

One supernova has been observed in NGC 5082:

See also

References

  1. 1 2 3 4 5 6 7 8 9 10 11 "Results for object NGC 5082". NASA/IPAC Extragalactic Database. NASA and Caltech. Retrieved 10 December 2025.
  2. ↑ "Distance Results for NGC 5082". NASA/IPAC Extragalactic Database. NASA. Retrieved 10 December 2025.
  3. ↑ Seligman, Courtney. "New General Catalogue Objects: NGC 5082". Celestial Atlas. Retrieved 10 December 2025.
  4. ↑ Asmus, D.; Greenwell, C. L.; Gandhi, P.; Boorman, P. G.; Aird, J.; Alexander, D. M.; Assef, R. J.; Baldi, R. D.; Davies, R. I.; Hönig, S. F.; Ricci, C.; Rosario, D. J.; Salvato, M.; Shankar, F.; Stern, D. (2020). "Local AGN survey (LASr): I. Galaxy sample, infrared colour selection, and predictions for AGN within 100 MPC". Monthly Notices of the Royal Astronomical Society. 494 (2): 1784. arXiv:2003.05959. Bibcode:2020MNRAS.494.1784A. doi:10.1093/mnras/staa766.
  5. ↑ "NGC 5082". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 10 December 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. ↑ Humason, M. L.; Gates, H. S. (1960). "The 1959 Palomar Supernova Search". Publications of the Astronomical Society of the Pacific. 72 (426): 208. Bibcode:1960PASP...72..208H. doi:10.1086/127513.
  8. ↑ "SN 1958F". Transient Name Server. IAU. Retrieved 10 December 2025.