Cygnus OB9 is an OB association in Cygnus.[2] It is near to the Cygnus OB2 association. The region is embedded within a wider one of star formation known as Cygnus X, which is one of the most luminous objects in the sky at radio wavelengths. The region is approximately 5000 light years from Earth in the constellation of Cygnus.[3]
^Pickett, Daniel Edward (1993). "Photoelectric UBV photometry of Cygnus OB3 and Cygnus OB9". ProQuest Dissertations and Theses; Thesis (M.S.)--University of Montana. 52–03: 39. Bibcode:1993PhDT.......160P.
^Zakirov, M. M.; Eshankulova, M. U. (2008). "Close binary systems in regions of OB associations. VI. V498 Cyg in Cyg OB9". Kinematics and Physics of Celestial Bodies. 24 (2): 77–88. Bibcode:2008KPCB...24...77Z. doi:10.3103/S0884591308020037. S2CID 121799853.
^Comerón, F.; Pasquali, A. (2012). "New members of the massive stellar population in Cygnus". Astronomy & Astrophysics. 110: 2715. Bibcode:2012A&A...543A.101C. doi:10.1051/0004-6361/201219022.
This star cluster–related article is a stub. You can help Wikipedia by expanding it.
cygnus, association, cygnus, near, cygnus, association, region, embedded, within, wider, star, formation, known, cygnus, which, most, luminous, objects, radio, wavelengths, region, approximately, 5000, light, years, from, earth, constellation, cygnus, observat. Cygnus OB9 is an OB association in Cygnus 2 It is near to the Cygnus OB2 association The region is embedded within a wider one of star formation known as Cygnus X which is one of the most luminous objects in the sky at radio wavelengths The region is approximately 5000 light years from Earth in the constellation of Cygnus 3 Cygnus OB9Observation data J2000 0 epoch Right ascension20h 21m 00 0s 1 Declination39 54 00 Distance5000 lyApparent magnitude V 7 7Physical characteristicsAssociationsConstellationCygnusSee also Open cluster List of open clustersAlthough Cygnus OB9 has many O and B type stars Cygnus OB9 is also hidden behind a massive dust cloud known as the Cygnus Rift like Cygnus OB2 Prominent stars 4 Star name Spectral type Luminosity L Temperature K Mass M V2245 Cygni HD 229196 O5 255900 40862 61 6ALS 11244 O5If 125900 38612 40 1BD 39 4177 O6 5 136800 37870 39 3HD 229250 O7 110700 36872 33 9BD 39 4168 O7 123600 36872 37 3HD 229202 O8V 62500 34877 25See also editList of most massive starsReferences edit Ass Cyg OB 9 SIMBAD Centre de donnees astronomiques de Strasbourg Retrieved 2021 01 02 Pickett Daniel Edward 1993 Photoelectric UBV photometry of Cygnus OB3 and Cygnus OB9 ProQuest Dissertations and Theses Thesis M S University of Montana 52 03 39 Bibcode 1993PhDT 160P Zakirov M M Eshankulova M U 2008 Close binary systems in regions of OB associations VI V498 Cyg in Cyg OB9 Kinematics and Physics of Celestial Bodies 24 2 77 88 Bibcode 2008KPCB 24 77Z doi 10 3103 S0884591308020037 S2CID 121799853 Comeron F Pasquali A 2012 New members of the massive stellar population in Cygnus Astronomy amp Astrophysics 110 2715 Bibcode 2012A amp A 543A 101C doi 10 1051 0004 6361 201219022 nbsp 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 Cygnus OB9 amp oldid 1172494084, wikipedia, wiki, book, books, library,
