NGC 4790

NGC 4790
NGC 4790 imaged by the Hubble Space Telescope
Observation data (J2000 epoch)
ConstellationVirgo
Right ascension12h 54m 51.956s
Declination−10° 14′ 52.2″
Redshift0.004483
Heliocentric radial velocity1344 ± 5 km/s
Distance80.8 ± 5.8 Mly (24.76 ± 1.77 Mpc)
Group or clusterNGC 4699 Group
Apparent magnitude (V)12.4
Characteristics
TypeSB(rs)c?
Size~45,500 ly (13.95 kpc) (estimated)
Apparent size (V)1.55′ × 1.0′
Other designations
IRAS 12522-0958, MCG -02-33-056, PGC 43972

NGC 4790 is a barred spiral galaxy located in the constellation of Virgo. Its velocity with respect to the cosmic microwave background is 1,679 ± 24 km/s (1,043 ± 15 mi/s), which corresponds to a Hubble distance of 80.8 ± 5.8 Mly (24.76 ± 1.77 Mpc) away from the Solar System. In addition, six non-redshift measurements give a distance of 74.75 ± 4.07 Mly (22.917 ± 1.249 Mpc). NGC 4790 was discovered on 25 March 1786 by German-British astronomer William Herschel.

NGC 4790 is a member of the NGC 4699 Group (also known as LGG 307) of galaxies, which is a member of the Virgo II Groups, a series of galaxies and galaxy clusters strung out from the southern edge of the Virgo Supercluster.

Astronomical transients

One astronomical transient event has been observed in NGC 4790: the supernova SN 2012au (Type Ib, mag. 13.8), which was discovered by the Catalina Sky Survey on 14 March 2012. This supernova later produced evidence of a pulsar wind nebula which appears to be expanding outward at approximately 2,300 km/s (1,400 mi/s).

See also

References

  1. 1 2 3 4 5 6 7 8 9 10 "Results for object NGC 4790". NASA/IPAC Extragalactic Database. NASA and Caltech. Retrieved 25 November 2024.
  2. ↑ "Distance Results for NGC 4790". NASA/IPAC EXTRAGALACTIC DATABASE. NASA. Retrieved 25 November 2024.
  3. ↑ Seligman, Courtney. "New General Catalogue Objects: NGC 4790". Celestial Atlas. Retrieved 25 November 2024.
  4. ↑ "The Virgo III Groups". Atlas of the Universe. Retrieved 2010-11-27.
  5. ↑ 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.
  6. ↑ "SN 2012au". Transient Name Server. IAU. Retrieved 25 November 2024.
  7. ↑ SN 2012au at rochesterastronomy.com
  8. ↑ Milisavljevic, Dan; Patnaude, Daniel J.; Chevalier, Roger A.; Raymond, John C.; Fesen, Robert A.; Margutti, Raffaella; Conner, Brody; Banovetz, John (2018). "Evidence for a Pulsar Wind Nebula in the Type Ib Peculiar Supernova SN 2012au". The Astrophysical Journal Letters. 864 (2): L36. arXiv:1809.01141. Bibcode:2018ApJ...864L..36M. doi:10.3847/2041-8213/aadd4e.