NGC 5597

NGC 5597
NGC 5597 imaged by Legacy Surveys
Observation data (J2000 epoch)
ConstellationLibra
Right ascension14h 24m 27.4115s
Declination−16° 45′ 46.598″
Redshift0.009030±0.0000170
Heliocentric radial velocity2,707±5 km/s
Distance125.90 Mly (38.600 Mpc)
Group or clusterHOLM 638, VV 446
Apparent magnitude (V)12.60
Characteristics
TypeSAB(s)cd
Size~83,900 ly (25.73 kpc) (estimated)
Apparent size (V)2.1′ × 1.7′
Other designations
HOLM 638B, IRAS 14216-1632, 2MASX J14242744-1645457, MCG -03-37-002, PGC 51456, VV 446 NED02

NGC 5597 is an intermediate spiral galaxy in the constellation of Libra. Its velocity with respect to the cosmic microwave background is 2,956±18 km/s, which corresponds to a Hubble distance of 142.2 ± 10.0 Mly (43.59 ± 3.06 Mpc). However, one non-redshift measurement gives a much closer distance estimate of 125.90 Mly (38.600 Mpc). It was discovered by German-British astronomer William Herschel on 14 May 1784.

NGC 5597 is a Seyfert I 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.

Pair of galaxies

NGC 5595 (upper right) and NGC 5597 (lower left) imaged by Pan-STARRS

NGC 5597 and NGC 5595 [fr] are listed together as Holm 638 in Erik Holmberg's A Study of Double and Multiple Galaxies Together with Inquiries into some General Metagalactic Problems, published in 1937. The two galaxies are also listed together as VV 446 in part II of the Atlas and Catalogue of Interacting Galaxies.

Supernovae

Two supernovae have been observed in NGC 5597:

See also

References

  1. 1 2 3 4 5 6 7 8 9 10 11 "Results for object NGC 5597". NASA/IPAC Extragalactic Database. NASA and Caltech. Retrieved 14 December 2025.
  2. ↑ "Distance Results for NGC 5597". NASA/IPAC Extragalactic Database. NASA. Retrieved 14 December 2025.
  3. ↑ Herschel, William (1786). "Catalogue of One Thousand New Nebulae and Clusters of Stars" (PDF). Philosophical Transactions of the Royal Society of London. 76: 457–499. Bibcode:1786RSPT...76..457H. doi:10.1098/rstl.1786.0027.
  4. ↑ Seligman, Courtney. "New General Catalogue Objects: NGC 5597". Celestial Atlas. Retrieved 14 December 2025.
  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 5597". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 14 December 2025.
  7. ↑ Asmus, D.; Greenwell, C. L.; Gandhi, P.; Boorman, P. G.; Aird, J.; et al. (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): 1784–1816. arXiv:2003.05959. Bibcode:2020MNRAS.494.1784A. doi:10.1093/mnras/staa766.
  8. ↑ Holmberg, Erik (1937). "A Study of Double and Multiple Galaxies Together with Inquiries into some General Metagalactic Problems". Annals of the Observatory of Lund. 6: 1. Bibcode:1937AnLun...6....1H.
  9. ↑ Vorontsov-Velyaminov, B. A. (1977). "Atlas of interacting galaxies, Part II and the concept of fragmentation of galaxies". Astronomy and Astrophysics Supplement Series. 28: 1. Bibcode:1977A&AS...28....1V.
  10. ↑ Torres, C.; Wischnjewsky, M.; Gonzalez, E. (1981). "Possible Supernova in NGC 5597". International Astronomical Union Circular (3609): 1. Bibcode:1981IAUC.3609....1T.
  11. ↑ "SN 1981E". Transient Name Server. IAU. Retrieved 14 December 2025.
  12. ↑ Monard, L. A. G.; Turatto, M.; Benetti, S.; Pastorello, A.; Cellier-Holtzem, F.; Inserra, C.; Smartt, S.; Fraser, M.; Wright, D. (2012). "Supernova 2012es in NGC 5597 = PSN J14242911-1645392". Central Bureau Electronic Telegrams (3225): 1. Bibcode:2012CBET.3225....1M.
  13. ↑ "SN 2012es". Transient Name Server. IAU. Retrieved 14 December 2025.