NGC 2545

NGC 2545
NGC 2545 imaged by SDSS
Observation data (J2000 epoch)
ConstellationCancer
Right ascension08h 14m 14.1505s
Declination+21° 21′ 19.658″
Redshift0.011291±0.00000900
Heliocentric radial velocity3,385±3 km/s
Distance158.97 ± 11.44 Mly (48.740 ± 3.507 Mpc)
Group or clusterNGC 2545 Group (LGG 156)
Apparent magnitude (V)13.4g
Characteristics
Type(R)SB(r)ab
Size~115,600 ly (35.44 kpc) (estimated)
Apparent size (V)1.23′ × 1.09′
Other designations
IRAS 08113+2130, 2MASX J08141413+2121198, UGC 4287, MCG +04-20-007, PGC 23086, CGCG 119-016

NGC 2545 is a barred spiral galaxy in the constellation of Cancer. Its velocity with respect to the cosmic microwave background is 3,613±16 km/s, which corresponds to a Hubble distance of 173.8 ± 12.2 Mly (53.29 ± 3.74 Mpc). Additionally, 15 non-redshift measurements give a closer distance of 158.97 ± 11.44 Mly (48.740 ± 3.507 Mpc). It was discovered by German-British astronomer William Herschel on 11 January 1787.

NGC 2545 has an 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. It is also a LINER galaxy, i.e. a galaxy whose nucleus has an emission spectrum characterized by broad lines of weakly ionized atoms.

NGC 2545 group

NGC 2545 is a member of a group of galaxies named after it (also known as LGG 156). This group contains 5 galaxies, including NGC 2565, UGC 4308 [d], CGCG 119-44 [d], and CGCG 119-56.

Supernova

One supernova has been observed in NGC 2545:

See also

References

  1. 1 2 3 4 5 6 7 8 9 10 11 "Results for object NGC 2545". NASA/IPAC Extragalactic Database. NASA and Caltech. Retrieved 26 March 2026.
  2. 1 2 "Distance Results for NGC 2545". NASA/IPAC Extragalactic Database. NASA. Retrieved 26 March 2026.
  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 2545". Celestial Atlas. Retrieved 26 March 2026.
  5. ↑ Gavazzi, G.; Savorgnan, G.; Fumagalli, Mattia (2011). "The complete census of optically selected AGNs in the Coma supercluster: The dependence of AGN activity on the local environment". Astronomy and Astrophysics. 534: A31. arXiv:1107.3702. Bibcode:2011A&A...534A..31G. doi:10.1051/0004-6361/201117461.
  6. ↑ "NGC 2545". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 26 March 2026.
  7. ↑ 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.
  8. ↑ "LGG 156". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 26 March 2026.
  9. ↑ Narla, A.; Thrasher, P.; Li, W.; Cenko, S. B.; Filippenko, A. V. (2008). "Supernovae 2008hl, 2008hm, and 2008hn". Central Bureau Electronic Telegrams (1586): 1. Bibcode:2008CBET.1586....1N.
  10. ↑ "SN 2008hn". Transient Name Server. IAU. Retrieved 26 March 2026.