NGC 6738 is an astronomical feature that is catalogued as an NGC object. Although listed as an open cluster in some astronomical databases, it may be merely an asterism; a 2003 paper in the journal Astronomy and Astrophysics describes it as being an "apparent concentration of a few bright stars on patchy background absorption".[4][5]

NGC 6738
Observation data (J2000 epoch)
Right ascension19h 01m 1(8.0)s[1]
Declination+11° 37′ (00)″[1]
Distance2,283 ly (700 pc)[1]
Apparent magnitude (V)8.3[2]
Apparent dimensions (V)15.0[2]
Physical characteristics
Other designationsCr 396, C1859+115, OCL 101.0, KPR2004b.[3] 459
Associations
ConstellationAquila[2]
See also: Open cluster, List of open clusters

References

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  1. ^ a b c Kharchenko, N. V.; Piskunov, A. E.; Röser, S.; Schilbach, E.; et al. (August 2005). "Astrophysical parameters of Galactic open clusters". Astronomy and Astrophysics. 438 (3): 1163–1173. arXiv:astro-ph/0501674. Bibcode:2005A&A...438.1163K. doi:10.1051/0004-6361:20042523. S2CID 9079873.
  2. ^ a b c Aranda, Ted (2011), 3,000 Deep-Sky Objects: An Annotated Catalogue, The Patrick Moore Practical Astronomy Series, Springer Science & Business Media, p. 429, ISBN 9781441994196
  3. ^ "NGC 6738". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2006-12-21.
  4. ^ Boeche, C.; Barbon, R.; Henden, A.; Munari, U.; Agnolin, P. (2003). "NGC 6738: Not a real open cluster". Astronomy and Astrophysics. 406 (3): 893–898. arXiv:astro-ph/0306093. Bibcode:2003A&A...406..893B. doi:10.1051/0004-6361:20030834. S2CID 1433681.
  5. ^ "DOCdb - NGC 6738". Deep Sky Observer's Companion. Retrieved 2012-12-17.
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