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NGC 2655

From Wikipedia, the free encyclopedia

NGC 2655
NGC 2655 by Hubble Space Telescope.
Observation data (J2000 epoch)
ConstellationCamelopardalis
Right ascension08h 55m 37.7s[1]
Declination+78° 13′ 03″[1]
Redshift1400 ± 1 km/s[1]
Distance63 Mly (19.5 Mpc)[1]
Apparent magnitude (V)10.1
Characteristics
TypeSAB(s)0/a [1]
Apparent size (V)4.9′ × 4.1′[1]
Other designations
Arp 225, UGC 4637, PGC 25069[1]
NGC 2655 from Planewave CDK24 in Julian, CA

NGC 2655 is a lenticular galaxy in the constellation Camelopardalis. It is at a distance of 60 million light years from Earth. NGC 2655 is a Seyfert galaxy. The galaxy has asymmetric dust lanes in the centre of the galaxy, tidal arms and extended neutral hydrogen gas and may have recently experienced a merger. The complex dynamics of the HI and optical tails suggest the galaxy may have undergone more mergers in the past. A weak bar has been detected in infrared H band. The diameter of the disk of the galaxy is estimated to be 60 Kpc (195,000 ly).[2]

William Herschel discovered NGC 2655 in September 26, 1802 and described it as very bright and considerably large. The galaxy can be glimpsed with a 4-inch telescope under dark skies nearly 10° from the north celestial pole.[3] One supernova has been observed in NGC 2655, SN 2011B,[4] a type Ia with peak magnitude 12.8.[5]

NGC 2655 is the brightest member of the NGC 2655 group, which also contains the Sc galaxy NGC 2715, NGC 2591, and NGC 2748.[6][7] One of the gas structures of NGC 2655 is trailing off toward the small galaxy UGC 4714.[2]

References

  1. ^ a b c d e f g "NASA/IPAC Extragalactic Database". Results for NGC 2655. Retrieved 2016-01-18.
  2. ^ a b Sparke, Linda S.; van Moorsel, Gustaaf; Erwin, Peter; Wehner, Elizabeth M. H. (January 2008). "NGC 2655: from Inner Polar Ring to Outer Shells and Tails". Astronomical Journal. 135 (1): 99–111. Bibcode:2008AJ....135...99S. doi:10.1088/0004-6256/135/1/99.
  3. ^ Stephen James O'Meara (2007). Deep-Sky Companions: Hidden Treasures. Cambridge University Press. p. 240. ISBN 9781139463737.
  4. ^ List of Supernovae IAU Central Bureau for Astronomical Telegrams. Retrieved 29 December 2015.
  5. ^ List of supernovae sorted by Magnitude for 2011
  6. ^ "A List of Nearby Galaxy Groups". Atlas of the Universe. Retrieved 2016-01-25.
  7. ^ Dmitry Makarov; Igor Karachentsev (2011). "Galaxy groups and clouds in the local (z~ 0.01) Universe". MNRAS. 412 (4): 2498–2520. arXiv:1011.6277. Bibcode:2011MNRAS.412.2498M. doi:10.1111/j.1365-2966.2010.18071.x. S2CID 119194025. Archived from the original on 31 January 2016. Retrieved 1 January 2016.

External links

This page was last edited on 28 June 2023, at 21:04
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