NGC 3120

NGC 3120
NGC 3120 imaged by DSS
Observation data (J2000 epoch)
ConstellationAntlia
Right ascension10h 05m 23.0413s
Declination−34° 13′ 11.847″
Redshift0.009300±0.00000500
Heliocentric radial velocity2,788±1 km/s
Distance97.19 ± 5.92 Mly (29.800 ± 1.816 Mpc)
Group or clusterNGC 3038 Group (LGG 184)
Apparent magnitude (V)13.52
Characteristics
TypeSAB(s)bc
Size~79,200 ly (24.27 kpc) (estimated)
Apparent size (V)1.8′ × 1.2′
Other designations
ESO 374- G 029, IRAS 10031-3358, 2MASX J10052305-3413118, MCG -06-22-017, PGC 29278

NGC 3120 is an intermediate spiral galaxy in the constellation of Antlia. Its velocity with respect to the cosmic microwave background is 3,105±22 km/s, which corresponds to a Hubble distance of 149.4 ± 10.5 Mly (45.80 ± 3.22 Mpc). However, 17 non-redshift measurements give a much closer mean distance of 97.19 ± 5.92 Mly (29.800 ± 1.816 Mpc). It was discovered by British astronomer John Herschel on 22 January 1838.

NGC 3120 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.

NGC 3038 Group

NGC 3120 is a member of the NGC 3038 group (also known as LGG 184). This group has 6 galaxies, including NGC 3038 [fr], NGC 3087, IC 2532 [fr], ESO 373-21 [d], and ESO 373-26 [d].

Supernovae

Two supernovae have been observed in NGC 3120:

See also

References

  1. 1 2 3 4 5 6 7 8 9 10 "Results for object NGC 3120". NASA/IPAC Extragalactic Database. NASA and Caltech. Retrieved 22 March 2026.
  2. 1 2 "Distance Results for NGC 3120". NASA/IPAC Extragalactic Database. NASA. Retrieved 22 March 2026.
  3. ↑ Seligman, Courtney. "New General Catalogue Objects: NGC 3120". Celestial Atlas. Retrieved 22 March 2026.
  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 3120". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 22 March 2026.
  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. ↑ "LGG 184". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 22 March 2026.
  8. ↑ Woodings, S.; Martin, R.; Williams, A.; Verveer, A.; Biggs, J. (1999). "Supernova 1999ca in NGC 3120". International Astronomical Union Circular (7158): 1. Bibcode:1999IAUC.7158....1W.
  9. ↑ "SN 1999ca". Transient Name Server. IAU. Retrieved 22 March 2026.
  10. ↑ Maza, J.; Hamuy, M.; Antezana, R.; Gonzalez, L.; Lopez, P.; Silva, S.; Folatelli, G.; Cartier, R.; Forster, F.; Marchi, S.; Rojas, A.; Pignata, G.; Conuel, B.; Reichart, D.; Ivarsen, K.; Haislip, J.; Crain, A.; Foster, D.; Nysewander, M.; Lacluyze, A. (2010). "Supernova 2010F in NGC 3120". Central Bureau Electronic Telegrams (2125): 1. Bibcode:2010CBET.2125....1M.
  11. ↑ "SN 2010F". Transient Name Server. IAU. Retrieved 22 March 2026.

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