NGC 6744

NGC 6744 (also known as Caldwell 101) is an intermediate spiral galaxy about 30 million light-years away[2] in the constellation Pavo (Peacock). It is considered as a Milky Way mimic in the immediate vicinity, displaying 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 from Parramatta in Australia by Scottish astronomer James Dunlop on 30 June 1826.[4]

NGC 6744
Wide Field Imager view of a Milky Way look-alike NGC 6744
Observation data (J2000 epoch)
ConstellationPavo
Right ascension19h 09m 46.1s[1]
Declination−63° 51′ 27″[1]
Redshift0.002805[1]
Heliocentric radial velocity841 ± 2 km/s[1]
Distance31 ± 5.2 Mly
(9.5 ± 1.6 Mpc)[2]
Apparent magnitude (V)9.14[1]
Characteristics
TypeSAB(r)bc[1] II
Apparent size (V)20′.0 × 12′.9[1]
Other designations
Caldwell 101, PGC 62836

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

One supernova has been observed in NGC 6744: SN 2005at (type Ic, mag. 16) was discovered on 15 March 2005.[7]

See also
  • NGC 2336 - another spiral galaxy of similar size and shape
  • NGC 1232
  • SPT0418-47 - a spiral galaxy of similar size and shape when the universe was 1.4 billion years old
  • UGC 12158

References
  1. "NASA/IPAC Extragalactic Database". Results for NGC 6744. Retrieved 2006-08-31.
  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. Seligman, Courtney. "NGC Objects: NGC 6700 - 6749". cseligman.com. Retrieved 14 February 2019.
  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. Transient Name Server entry for SN 2005at. Retrieved 26 March 2023.
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