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NGC 4485

NGC 4485
NGC 4485 taken by Hubble.[1]
Observation data (J2000 epoch)
ConstellationCanes Venatici[1]
Right ascension12h 30m 31.113s[2]
Declination+41° 42′ 04.22″[2]
Redshift0.0016[3]
Heliocentric radial velocity483[4]
Distance29.1 Mly (8.91 Mpc)[4]
Apparent magnitude (V)11.93[3]
Apparent magnitude (B)12.32[3]
Characteristics
TypeIB(s)m pec[5]
Size11000 ly
Other designations
2MASX J12303111+4142042, NGC 4485, UGC 7648, MCG +07-26-013, PGC 41326, VV 30b, KPG 341a[3]

NGC 4485 is an irregular galaxy located in the northern constellation of Canes Venatici. It was discovered January 14, 1788 by William Herschel.[6] This galaxy is located at a distance of 29[4] million light years and is receding with a heliocentric radial velocity of 483 km/s.[4]

NGC 4485 is interacting with the spiral galaxy NGC 4490 and as a result both galaxies are distorted and are undergoing intense star formation. They have a projected separation of 9.3 kpc and are surrounded by an extended hydrogen envelope with a dense bridge of gas joining the two. Both galaxies are otherwise isolated and of low mass. The star formation rate in NGC 4485 is 0.22 M☉·yr−1.[7]

  • NGC 4485 and NGC 4490.
    NGC 4485 and NGC 4490.
  • Interaction between them created a stream of material about 25 000 light-years long.[8]
    Interaction between them created a stream of material about 25 000 light-years long.[8]

References

  1. ^ a b "Starbursts in the wake of a fleeting romance". ESA/Hubble Picture of the Week. Retrieved 13 May 2014.
  2. ^ a b Skrutskie, Michael F.; et al. (1 February 2006). "The Two Micron All Sky Survey (2MASS)". The Astronomical Journal. 131 (2): 1163–1183. Bibcode:2006AJ....131.1163S. doi:10.1086/498708. ISSN 0004-6256. S2CID 18913331.
  3. ^ a b c d "NGC 4485". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 13 May 2014.
  4. ^ a b c d Tully, R. Brent; et al. (2016). "Cosmicflows-3". The Astronomical Journal. 152 (2): 21. arXiv:1605.01765. Bibcode:2016AJ....152...50T. doi:10.3847/0004-6256/152/2/50. S2CID 250737862. 50.
  5. ^ "Results for object NGC 4485 (NGC 4485)". NASA/IPAC Extragalactic Database. California Institute of Technology. Retrieved 2021-02-10.
  6. ^ Seligman, Courtney. "NGC Objects: NGC 4450 - 4499". Celestial Atlas. Retrieved 2021-12-26.
  7. ^ Pearson, Sarah; et al. (November 2018). "Modelling the baryon cycle in low-mass galaxy encounters: the case of NGC 4490 and NGC 4485". Monthly Notices of the Royal Astronomical Society. 480 (3): 3069–3090. arXiv:1807.03791. Bibcode:2018MNRAS.480.3069P. doi:10.1093/mnras/sty2052.
  8. ^ "Hubble Observes Creative Destruction as Galaxies Collide". www.spacetelescope.org. Retrieved 16 May 2019.
  • Media related to NGC 4485 at Wikimedia Commons



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