Wikipedia

NGC 4708

NGC 4708
NGC 4708 imaged by Legacy Surveys
Observation data (J2000 epoch)
ConstellationVirgo
Right ascension12h 49m 41.4813s[1]
Declination−11° 05′ 34.679″[1]
Redshift0.013900±0.0000270[1]
Heliocentric radial velocity4,167±8 km/s[1]
Distance204.76 ± 19.97 Mly (62.780 ± 6.122 Mpc)[1]
Group or clusterHolm 463
Apparent magnitude (V)13.1[1]
Characteristics
TypeSA(r)ab pec[1]
Size~118,100 ly (36.22 kpc) (estimated)[1]
Apparent size (V)1.2′ × 0.9′[1]
Other designations
HOLM 463A, IRAS 12470-1049, 2MASX J12494148-1105350, MCG -02-33-016, PGC 43382[1]

NGC 4708 is a peculiar spiral galaxy in the constellation of Virgo. Its velocity with respect to the cosmic microwave background is 4,505±25 km/s, which corresponds to a Hubble distance of 216.7 ± 15.2 Mly (66.44 ± 4.67 Mpc).[1] However, 15 non-redshift measurements give a closer mean distance of 204.76 ± 19.97 Mly (62.780 ± 6.122 Mpc).[2] It was discovered by German-British astronomer William Herschel on 11 March 1788.[3]

NGC 4708 has a possible 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.[4][5]

NGC 4708 and neighboring galaxy LEDA 970118 [d] are listed together as Holm 463 in Erik Holmberg's A Study of Double and Multiple Galaxies Together with Inquiries into some General Metagalactic Problems, published in 1937.[6]

Supernovae

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Three supernovae have been observed in NGC 4708:

See also

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References

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  1. ^ a b c d e f g h i j k "Results for object NGC 4708". NASA/IPAC Extragalactic Database. NASA and Caltech. Retrieved 5 February 2026.
  2. ^ "Distance Results for NGC 4708". NASA/IPAC EXTRAGALACTIC DATABASE. NASA. Retrieved 5 February 2026.
  3. ^ Seligman, Courtney. "New General Catalogue Objects: NGC 4708". Celestial Atlas. Retrieved 5 February 2026.
  4. ^ Asmus, D.; Greenwell, C. L.; Gandhi, P.; Boorman, P. G.; Aird, J.; Alexander, D. M.; Assef, R. J.; Baldi, R. D.; Davies, R. I.; Hönig, S. F.; Ricci, C.; Rosario, D. J.; Salvato, M.; Shankar, F.; Stern, D. (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. arXiv:2003.05959. Bibcode:2020MNRAS.494.1784A. doi:10.1093/mnras/staa766.
  5. ^ "NGC 4708". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 5 February 2026.
  6. ^ 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.
  7. ^ Weisz, D.; Li, W. (2003). "Supernova 2003ef in NGC 4708". International Astronomical Union Circular (8131): 1. Bibcode:2003IAUC.8131....1W.
  8. ^ "SN 2003ef". Transient Name Server. IAU. Retrieved 5 February 2026.
  9. ^ Puckett, T.; Langoussis, A. (2005). "Supernova 2005bo in NGC 4708". International Astronomical Union Circular (8514): 1. Bibcode:2005IAUC.8514....1P.
  10. ^ "SN 2005bo". Transient Name Server. IAU. Retrieved 5 February 2026.
  11. ^ Tonry, J.; Denneau, L.; Stalder, B.; Heinze, A.; Sherstyuk, A.; Rest, A.; Smith, K. W.; Smartt, S. J.; Wright, D.; Young, D. R.; Huber, M.; Chambers, K. C.; Flewelling, H.; Willman, M.; Primak, N.; Schultz, A.; Gibson, B.; Magnier, E.; Waters, C.; Tonry, J.; Wainscoat, R. J. (2016). "ATLAS discovery of bright nuclear transient flux in NGC4708 : ATLAS16bdg". The Astronomer's Telegram. 9151: 1. Bibcode:2016ATel.9151....1T.
  12. ^ Mundell, C. G.; Smith, R. J.; Childress, M. J. (2016). "Liverpool Telescope classification of ATLAS16bdg as a Type Ia supernova near maximum light". The Astronomer's Telegram. 9165: 1. Bibcode:2016ATel.9165....1M.
  13. ^ "SN 2016cvn". Transient Name Server. IAU. Retrieved 5 February 2026.
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  • Media related to NGC 4708 at Wikimedia Commons
  • NGC 4708 on WikiSky: DSS2, SDSS, GALEX, IRAS, Hydrogen α, X-Ray, Astrophoto, Sky Map, Articles and images