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 ascension | 19h 01m 1(8.0)s[1] |
| Declination | +11° 37′ (00)″[1] |
| Distance | 2,283 ly (700 pc)[1] |
| Apparent magnitude (V) | 8.3[2] |
| Apparent dimensions (V) | 15.0′[2] |
| Physical characteristics | |
| Other designations | Cr 396, C1859+115, OCL 101.0, KPR2004b.[3] 459 |
| Associations | |
| Constellation | Aquila[2] |
References edit
- ^ 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.
- ^ 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
- ^ "NGC 6738". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2006-12-21.
- ^ 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.
- ^ "DOCdb - NGC 6738". Deep Sky Observer's Companion. Retrieved 2012-12-17.