NGC 6834

NGC 6834
NGC 6834
观测资料 (J2000.0 历元)
星座	天鹅座
赤经	19h 52m 12.5s
赤纬	+29° 24′ 29″
距离	10,850 ly（3,326.7 pc）
视星等 (V)	7.8
视大小 (V)	12′
物理特征
半径	6.1 ly
估计年龄	65±18 Myr
其他名称	NGC 6834, C 1950+292
	相关条目：疏散星团、NGC天体表

NGC 6834是一个年轻的^[6]疏散星团，距离太阳大约10,850光年^[2]，坐落在天鹅座。它是英-德天文学家威廉·赫歇尔于1784年7月17日发现的^[7]。这个星团由于星际尘埃的消光，其亮度降低了2.1星等，使其视星等降为7.8^[3]。一半的星团成员位于6997174532925199433♠6′的角半径范围内^[2]。

这个星团的川普勒分类为II 2 m，表明它的恒星数量中等（m），亮度范围适中（2），恒星向中心集中的密度很小（II）^[6]。它的成员恒星大约有260颗^[2]，年龄大约是6,500万年^[4]，然而估计是介于5,000万至8,000万年之间^[6]。在星团中已经检测到15颗B型变星，其中有4颗是Be星。星团成员有5颗显示出氢α发射线，还有一颗仙后座γ型和两颗波江座λ型变星^[6]。

参考文献

^ ^1.0 ^1.1 Kerber, F.; et al. Galactic Planetary Nebulae and their central stars. I. An accurate and homogeneous set of coordinates. Astronomy and Astrophysics. September 2003, 408 (3): 1029–1035. Bibcode:2003A&A...408.1029K. doi:10.1051/0004-6361:20031046 .
^ ^2.0 ^2.1 ^2.2 ^2.3 ^2.4 Cantat-Gaudin, T.; Anders, F. Clusters and mirages: cataloguing stellar aggregates in the Milky Way. Astronomy & Astrophysics. January 2020, 633: 22. Bibcode:2020A&A...633A..99C. S2CID 208138247. arXiv:1911.07075 . doi:10.1051/0004-6361/201936691. A99.
^ ^3.0 ^3.1 Crossen, Craig; Rhemann, Gerald. Sky Vistas: Astronomy for Binoculars and Richest-Field Telescopes. Springer Vienna. 2012: 68. ISBN 9783709106266.
^ ^4.0 ^4.1 Paunzen, E.; Netopil, M. On the current status of open-cluster parameters. Monthly Notices of the Royal Astronomical Society. October 2006, 371 (4): 1641–1647. Bibcode:2006MNRAS.371.1641P. S2CID 15047964. arXiv:astro-ph/0607421 . doi:10.1111/j.1365-2966.2006.10783.x .
^ NGC 6834. SIMBAD. 斯特拉斯堡天文资料中心.
^ ^6.0 ^6.1 ^6.2 ^6.3 Mathew, Blesson; et al. Optical/IR studies of Be stars in NGC 6834 with emphasis on two specific stars. Research in Astronomy and Astrophysics. September 2014, 14 (9): 1173–1192. Bibcode:2014RAA....14.1173M. S2CID 118378570. arXiv:1408.6658 . doi:10.1088/1674-4527/14/9/008. 1173-1192.
^ Seligman, Courtney. NGC Objects: NGC 6800 - 6849. Celestial Atlas. [2022-01-08].

外部链接

维基共享资源上的相关多媒体资源：NGC 6834

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[Kerber_et_al_2003-1] 1.0 ^1.1 Kerber, F.; et al. Galactic Planetary Nebulae and their central stars. I. An accurate and homogeneous set of coordinates. Astronomy and Astrophysics. September 2003, 408 (3): 1029–1035. Bibcode:2003A&A...408.1029K. doi:10.1051/0004-6361:20031046 .

[Cantat-Gaudin_Anders_2020-2] 2.0 ^2.1 ^2.2 ^2.3 ^2.4 Cantat-Gaudin, T.; Anders, F. Clusters and mirages: cataloguing stellar aggregates in the Milky Way. Astronomy & Astrophysics. January 2020, 633: 22. Bibcode:2020A&A...633A..99C. S2CID 208138247. arXiv:1911.07075 . doi:10.1051/0004-6361/201936691. A99.

[Crossen_Rhemann_2012-3] 3.0 ^3.1 Crossen, Craig; Rhemann, Gerald. Sky Vistas: Astronomy for Binoculars and Richest-Field Telescopes. Springer Vienna. 2012: 68. ISBN 9783709106266.

[mnras371_4_1641-4] 4.0 ^4.1 Paunzen, E.; Netopil, M. On the current status of open-cluster parameters. Monthly Notices of the Royal Astronomical Society. October 2006, 371 (4): 1641–1647. Bibcode:2006MNRAS.371.1641P. S2CID 15047964. arXiv:astro-ph/0607421 . doi:10.1111/j.1365-2966.2006.10783.x .

[SIMBAD-5] NGC 6834. SIMBAD. 斯特拉斯堡天文资料中心.

[Mathew_et_al_2014-6] 6.0 ^6.1 ^6.2 ^6.3 Mathew, Blesson; et al. Optical/IR studies of Be stars in NGC 6834 with emphasis on two specific stars. Research in Astronomy and Astrophysics. September 2014, 14 (9): 1173–1192. Bibcode:2014RAA....14.1173M. S2CID 118378570. arXiv:1408.6658 . doi:10.1088/1674-4527/14/9/008. 1173-1192.

[Seligman-7] Seligman, Courtney. NGC Objects: NGC 6800 - 6849. Celestial Atlas. [2022-01-08].

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