NGC 873

NGC 873
NGC 873 imaged by SDSS
Observation data (J2000 epoch)
ConstellationCetus
Right ascension02h 16m 32.3511s
Declination−11° 20′ 54.477″
Redshift0.013403±0.0000140
Heliocentric radial velocity4,018±4 km/s
Distance181.7 ± 12.8 Mly (55.70 ± 3.91 Mpc)
Group or clusterNGC 835 Group (LGG 49)
Apparent magnitude (V)12.83
Characteristics
TypeSc pec
Size~86,300 ly (26.47 kpc) (estimated)
Apparent size (V)1.6′ × 1.3′
Other designations
IRAS 02140-1134, 2MASX J02163235-1120549, MCG -02-06-048, PGC 8692

NGC 873 is a peculiar spiral galaxy in the constellation of Cetus. Its velocity with respect to the cosmic microwave background is 3,777±17 km/s, which corresponds to a Hubble distance of 181.7 ± 12.8 Mly (55.70 ± 3.91 Mpc). It was discovered by German-British astronomer William Herschel on 27 November 1785.

NGC 873 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 835 group

NGC 873 is a member of the NGC 835 galaxy group (also known as LGG 49). The other galaxies in the group are NGC 833, NGC 835 [fr], NGC 838, NGC 839, NGC 848 [fr], and UGCA 23 [d].

Supernova

One supernova has been observed in NGC 873:

See also

References

  1. 1 2 3 4 5 6 7 8 9 10 11 "Results for object NGC 873". NASA/IPAC Extragalactic Database. NASA and Caltech. Retrieved 16 December 2025.
  2. ↑ 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.
  3. ↑ Seligman, Courtney. "New General Catalogue Objects: NGC 873". Celestial Atlas. Retrieved 16 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 873". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 16 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. ↑ "LGG 49". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 16 December 2025.
  8. ↑ "SN 2022xjk". Transient Name Server. IAU. Retrieved 16 December 2025.