NGC 6744

NGC 6744
Wide Field Imager view of a Milky Way look-alike NGC 6744. Credit: ESO
Observation data (J2000 epoch)
Constellation Pavo
Right ascension 19h 09m 46.1s[1]
Declination −63° 51′ 27″[1]
Redshift 0.002805[1]
Helio radial velocity 841 ± 2 km/s[1]
Distance 31 ± 5.2 Mly
(9.5 ± 1.6 Mpc)[2]
Apparent magnitude (V) 9.14[1]
Characteristics
Type SAB(r)bc[1] II
Apparent size (V) 20′.0 × 12′.9[1]
Other designations
Caldwell 101, PGC 62836

NGC 6744 is an intermediate spiral galaxy about 30 million light-years away[2] in the constellation Pavo. It is thought to be one of the most Milky Way-like spiral galaxies in our immediate vicinity, with flocculent (fluffy) arms and an elongated core. It also has at least one distorted companion galaxy (NGC 6744A) superficially similar to one of the Magellanic Clouds.[3] It was discovered by British astronomer James Dunlop on 30 June 1826.

A supernova was discovered in the galaxy in 2005.[4]

NGC 6744 lies within the Virgo Supercluster.[5][6]

See also

References

  1. 1 2 3 4 5 6 7 "NASA/IPAC Extragalactic Database". Results for NGC 6744. Retrieved 2006-08-31.
  2. 1 2 "Distance Results for NGC 6744". NASA/IPAC Extragalactic Database. Retrieved 2010-06-19.
  3. ↑ "NASA/IPAC Extragalactic Database". Results for NGC 6744A. Retrieved 2010-06-19.
  4. ↑ Mobberley, Martin (1999). The Caldwell Objects And How to Observe Them. Springer. pp. 208–09. ISBN 978-1-4419-0326-6.
  5. ↑ P. Fouque; E. Gourgoulhon; P. Chamaraux; G. Paturel (1992). "Groups of galaxies within 80 Mpc. II - The catalogue of groups and group members". Astronomy and Astrophysics Supplement. 93: 211–233. Bibcode:1992A&AS...93..211F.
  6. ↑ "Nearby Groups of Galaxies". ned.ipac.caltech.edu. Retrieved 2018-05-04.
  7. ↑ "The Milky Way's big sister". www.spacetelescope.org. Retrieved 24 July 2018.
  8. ↑ "Hubble shows the local Universe in ultraviolet". www.spacetelescope.org. Retrieved 18 May 2018.
  • NGC 6744 on WikiSky: DSS2, SDSS, GALEX, IRAS, Hydrogen α, X-Ray, Astrophoto, Sky Map, Articles and images
  • NGC 6744, a Milky Way-like spiral galaxy
  • NGC 6744 (Pav)
  • June 4, 2010 – A Sibling of the Milky Way (Wise image of NGC 6744)
  • A spiral galaxy that resembles our Milky Way (1 June 2011)
  • Merrifield, Michael. "NGC 6744 The Milky Way's Twin". Sixty Symbols. Brady Haran for the University of Nottingham.
  • NASA Astronomy Picture of the Day: NGC 6744 Close Up (May 31, 2018)
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