NGC 4615

NGC 4615
NGC 4615 imaged by SDSS
Observation data (J2000 epoch)
ConstellationComa Berenices
Right ascension12h 41m 37.3313s
Declination+26° 04′ 21.871″
Redshift0.015797±0.0000112
Heliocentric radial velocity4,736±3 km/s
Distance213 Mly (65.4 Mpc)
Group or clusterHolm 439
Apparent magnitude (V)13.84
Characteristics
TypeScd
Size~160,400 ly (49.17 kpc) (estimated)
Apparent size (V)1.6′ × 0.7′
Other designations
HOLM 439A, IRAS 12391+2620, 2MASX J12413730+2604223, Arp 34, UGC 7852, MCG +04-30-013, PGC 42584, CGCG 129-018

NGC 4615 is a spiral galaxy in the constellation of Coma Berenices. Its velocity with respect to the cosmic microwave background is 5,022±20 km/s, which corresponds to a Hubble distance of 241.6 ± 16.9 Mly (74.07 ± 5.19 Mpc). However, one non-redshift measurement gives a much closer distance of 213 Mly (65.4 Mpc). It was discovered by German astronomer Heinrich d'Arrest on 9 May 1864.

NGC 4615 and NGC 4614 imaged by SDSS

NGC 4615 is listed in Halton Arp's Atlas of Peculiar Galaxies as Arp 34, as an example of a galaxy that looks like a stretched-out S shape.

NGC 4615 and NGC 4614 are listed together as Holm 439 in Erik Holmberg's A Study of Double and Multiple Galaxies Together with Inquiries into some General Metagalactic Problems, published in 1937. This grouping was also listed by A. P. Mahtessian in a paper published in 1998.

Supernovae

Two supernovae have been observed in NGC 4615:

See also

References

  1. 1 2 3 4 5 6 7 8 9 10 11 "Results for object NGC 4615". NASA/IPAC Extragalactic Database. NASA and Caltech. Retrieved 22 June 2025.
  2. ↑ "Distance Results for NGC 4615". NASA/IPAC EXTRAGALACTIC DATABASE. NASA. Retrieved 22 June 2025.
  3. ↑ Seligman, Courtney. "New General Catalogue Objects: NGC 4615". Celestial Atlas. Retrieved 22 June 2025.
  4. ↑ Arp, Halton (1966). "Atlas of Peculiar Galaxies". The Astrophysical Journal Supplement Series. 14: 1. Bibcode:1966ApJS...14....1A. doi:10.1086/190147.
  5. ↑ 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.
  6. ↑ Mahtessian, A. P. (1998). "Groups of galaxies. III. Some empirical characteristics". Astrophysics. 41 (3): 308. Bibcode:1998Ap.....41..308M. doi:10.1007/BF03036100.
  7. ↑ Wild, P.; Schildknecht, T. (1987). "Supernova 1987F in NGC 4615". International Astronomical Union Circular (4374): 1. Bibcode:1987IAUC.4374....1W.
  8. ↑ Cherepashchuk, A. M.; Metlova, N.; Wheeler, J. C.; Kirshner, R. P.; Crotts, A.; McMahan, R.; Wegner, G.; Swanson, S. (1987). "Supernova 1987F in NGC 4615?". International Astronomical Union Circular (4381): 1. Bibcode:1987IAUC.4381....1C.
  9. ↑ "SN 1987F". Transient Name Server. IAU. Retrieved 22 June 2025.
  10. ↑ "SN 2025nzi". Transient Name Server. IAU. Retrieved 22 June 2025.