NGC 1184

NGC 1184
NGC 1184 imaged by SDSS
Observation data (J2000 epoch)
ConstellationCepheus
Right ascension03h 16m 45.1631s
Declination+80° 47′ 36.130″
Redshift0.007812±0.0000630
Heliocentric radial velocity2,342±19 km/s
Distance109.2 ± 7.8 Mly (33.47 ± 2.38 Mpc)
Group or clusternest 101283
Apparent magnitude (V)13.44
Characteristics
TypeS0/a
Size~143,100 ly (43.86 kpc) (estimated)
Apparent size (V)2.8′ × 0.6′
Other designations
2MASX J03164489+8047358, UGC 2583, MCG +13-03-002, PGC 12174, CGCG 346-002

NGC 1184 is a lenticular galaxy in the constellation of Cepheus. Its velocity with respect to the cosmic microwave background is 2,269±20 km/s, which corresponds to a Hubble distance of 109.2 ± 7.8 Mly (33.47 ± 2.38 Mpc). It was discovered by British astronomer William Herschel on 16 September 1787.

NGC 1184 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.

Galaxy group

NGC 1184 is member of a small galaxy group known as nest 101283. The other two galaxies in the group are UGC 2519 [d] and UGC 2620 [d].

Supernovae

Two supernovae have been observed in NGC 1184:

See also

References

  1. 1 2 3 4 5 6 7 8 9 10 11 "Results for object NGC 1184". NASA/IPAC Extragalactic Database. NASA and Caltech. Retrieved 13 October 2026.
  2. 1 2 Tully, R. Brent (2015). "Galaxy Groups: A 2MASS Catalog". The Astronomical Journal. 149 (5): 171. arXiv:1503.03134. Bibcode:2015AJ....149..171T. doi:10.1088/0004-6256/149/5/171.
  3. ↑ Herschel, William (1789). "Catalogue of a Second Thousand of New Nebulae and Clusters of Stars; with a Few Introductory Remarks on the Construction of the Heavens". Philosophical Transactions of the Royal Society of London. 79: 212–255. Bibcode:1789RSPT...79..212H. doi:10.1098/rstl.1789.0021.
  4. ↑ Seligman, Courtney. "New General Catalogue Objects: NGC 1184". Celestial Atlas. Retrieved 13 October 2026.
  5. ↑ 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.
  6. ↑ "NGC 1184". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 13 October 2026.
  7. ↑ "[T2015] nest 101283". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 13 October 2026.
  8. ↑ "SN 2018isq". Transient Name Server. IAU. Retrieved 13 October 2026.
  9. ↑ "SN 2026aeiv". Transient Name Server. IAU. Retrieved 13 October 2026.

Notes