NGC 6755 is an open cluster of stars in the equatorialconstellation of Aquila, positioned about 3° to the east of the star Delta Aquilae.[2] It was discovered by the Anglo-German astronomer William Herschel on July 30, 1785.[5] Located at a distance of 8,060 light years from the Sun,[1] it lies 30′ to the northeast of NGC 6755, with the pair forming a visual double cluster. However, they probably do not form a binary cluster system since they have different ages and are too distant from each other.[2]
^ abcdCantat-Gaudin, T.; Anders, F. (January 2020). "Clusters and mirages: cataloguing stellar aggregates in the Milky Way". Astronomy & Astrophysics. 633: 22. arXiv:1911.07075. Bibcode:2020A&A...633A..99C. doi:10.1051/0004-6361/201936691. A99.
^ abcdeO'Meara, Stephen James (2011). Deep-Sky Companions: The Secret Deep. Vol. 4. Cambridge University Press. p. 371. ISBN9780521198769.
^ abKjeldsen, H.; Frandsen, S. (January 1991). "Stellar photometric stability. II. Ages and distances for 13 open clusters with time series observations". Astronomy and Astrophysics, Supplemental Series. 87: 119. Bibcode:1991A&AS...87..119K.
^Ciechanowska, A.; et al. (September 2007). "The Optical Gravitational Lensing Experiment. Variable Stars in the Field of Open Cluster NGC 6755". Acta Astronomica. 57: 249–266. Bibcode:2007AcA....57..249C.
External links
Media related to NGC 6755 at Wikimedia Commons
NGC 6755 on WikiSky: DSS2, SDSS, GALEX, IRAS, Hydrogen α, X-Ray, Astrophoto, Sky Map, Articles and images
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6755, open, cluster, stars, equatorial, constellation, aquila, positioned, about, east, star, delta, aquilae, discovered, anglo, german, astronomer, william, herschel, july, 1785, located, distance, light, years, from, lies, northeast, with, pair, forming, vis. NGC 6755 is an open cluster of stars in the equatorial constellation of Aquila positioned about 3 to the east of the star Delta Aquilae 2 It was discovered by the Anglo German astronomer William Herschel on July 30 1785 5 Located at a distance of 8 060 light years from the Sun 1 it lies 30 to the northeast of NGC 6755 with the pair forming a visual double cluster However they probably do not form a binary cluster system since they have different ages and are too distant from each other 2 NGC 6755NGC 6755 taken from Stellarium Observation data J2000 epoch ConstellationAquilaRight ascension19h 07m 46 1s 1 Declination 04 13 26 1 Distance8 060 ly 2 471 2 pc 1 Apparent magnitude V 7 5 2 Apparent dimensions V 15 2 Physical characteristicsEstimated age250 Myr 3 Other designationsNGC 6755 Cr 397 4 See also Open cluster List of open clustersThis cluster has a Trumpler class of II2r with a visual magnitude of 7 5 and it spans an angular size 15 2 It has an estimated age of 250 million years based on the main sequence turnoff 3 A total of 71 variable stars have been detected in the field of this cluster of which 31 are eclipsing binaries seven are pulsating variables and 28 are most likely irregular variable red giants 6 Gallery Edit Map showing location of NGC 6755 Roberto Mura References Edit a b c d Cantat Gaudin T Anders F January 2020 Clusters and mirages cataloguing stellar aggregates in the Milky Way Astronomy amp Astrophysics 633 22 arXiv 1911 07075 Bibcode 2020A amp A 633A 99C doi 10 1051 0004 6361 201936691 A99 a b c d e O Meara Stephen James 2011 Deep Sky Companions The Secret Deep Vol 4 Cambridge University Press p 371 ISBN 9780521198769 a b Kjeldsen H Frandsen S January 1991 Stellar photometric stability II Ages and distances for 13 open clusters with time series observations Astronomy and Astrophysics Supplemental Series 87 119 Bibcode 1991A amp AS 87 119K NGC 6755 SIMBAD Centre de donnees astronomiques de Strasbourg Retrieved 2007 04 25 Seligman Courtney NGC Objects NGC 6750 6799 Celestial Atlas Retrieved 2022 01 07 Ciechanowska A et al September 2007 The Optical Gravitational Lensing Experiment Variable Stars in the Field of Open Cluster NGC 6755 Acta Astronomica 57 249 266 Bibcode 2007AcA 57 249C External links Edit Media related to NGC 6755 at Wikimedia Commons NGC 6755 on WikiSky DSS2 SDSS GALEX IRAS Hydrogen a X Ray Astrophoto Sky Map Articles and images This star cluster related article is a stub You can help Wikipedia by expanding it vte Retrieved from https en wikipedia org w index php title NGC 6755 amp oldid 1064189904, wikipedia, wiki, book, books, library,
