NGC 2980

NGC 2980
NGC 2980 imaged by Pan-STARRS
Observation data (J2000 epoch)
ConstellationSextans
Right ascension09h 43m 11.9880s
Declination−09° 36′ 44.820″
Redshift0.019160±0.0000120
Heliocentric radial velocity5,744±4 km/s
Distance257.99 ± 9.79 Mly (79.100 ± 3.003 Mpc)
Apparent magnitude (V)13.6
Characteristics
TypeSAB(s)c
Size~154,600 ly (47.40 kpc) (estimated)
Apparent size (V)1.6′ × 0.9′
Other designations
IRAS 09407-0923, 2MASX J09431196-0936446, MCG -01-25-028, PGC 27799

NGC 2980 is an intermediate spiral galaxy in the constellation of Sextans. Its velocity with respect to the cosmic microwave background is 6,088±24 km/s, which corresponds to a Hubble distance of 292.9 ± 20.5 Mly (89.79 ± 6.30 Mpc). However, 12 non-redshift measurements give a closer mean distance of 257.99 ± 9.79 Mly (79.100 ± 3.003 Mpc). It was discovered by German-British astronomer William Herschel on 27 March 1786.

NGC 2980 is a Seyfert II galaxy, i.e. it has a quasar-like nucleus with very high surface brightnesses whose spectra reveal strong, high-ionisation emission lines, but unlike quasars, the host galaxy is clearly detectable.

Supernovae

Two supernovae have been observed in NGC 2980:

See also

References

  1. 1 2 3 4 5 6 7 8 9 10 "Results for object NGC 2980". NASA/IPAC Extragalactic Database. NASA and Caltech. Retrieved 15 March 2026.
  2. 1 2 "Distance Results for NGC 2980". NASA/IPAC Extragalactic Database. NASA. Retrieved 15 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 2980". Celestial Atlas. Retrieved 15 March 2026.
  5. ↑ Chen, Yan-Ping; Zaw, Ingyin; Farrar, Glennys R.; Elgamal, Sana (2022). "A Uniformly Selected, Southern-sky 6dF, Optical AGN Catalog". The Astrophysical Journal Supplement Series. 258 (2): 29. arXiv:2111.13217. Bibcode:2022ApJS..258...29C. doi:10.3847/1538-4365/ac4157.
  6. ↑ "NGC 2980". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 15 March 2026.
  7. ↑ Monard, L. A. G.; Martin, R.; Ponticello, N. J.; Li, W.; Puckett, T.; Gagliano, R.; Cox, L. (2006). "Supernovae 2006ba, 2006bb, 2006bc, 2006bd, 2006be, 2006bf". International Astronomical Union Circular (8693): 1. Bibcode:2006IAUC.8693....1M.
  8. ↑ "SN 2006ba". Transient Name Server. IAU. Retrieved 15 March 2026.
  9. ↑ Choi, J.; Cenko, S. B.; Li, W.; Filippenko, A. V.; Brimacombe, J. (2009). "Supernova 2009lm in NGC 2980". Central Bureau Electronic Telegrams (2032): 1. Bibcode:2009CBET.2032....1C.
  10. ↑ "SN 2009lm". Transient Name Server. IAU. Retrieved 15 March 2026.