astro.wikisort.org - Galaxy

Search / Calendar

NGC 6834 is a young[6] open cluster of stars located about 10,850[2] light years from the Sun in the constellation Cygnus. It was discovered on July 17, 1784 by Anglo-German astronomer William Herschel.[7] The cluster has a visual magnitude of 7.8, which is dimmed by 2.1 magnitudes due to interstellar dust.[3] Half the cluster members lie within an angular radius of 6′.[2]

NGC 6834
Observation data (J2000.0 epoch)
ConstellationCygnus
Right ascension19h 18m 28.085s[1]
Declination+06° 32 19.29[1]
Distance10,850 ly (3,326.7 pc)[2]
Apparent magnitude (V)7.8[3]
Apparent dimensions (V)12′[2]
Physical characteristics
Radius6.1 ly
Estimated age65±18 Myr[4]
Other designationsNGC 6834, C 1950+292[5]
See also: Open cluster, List of open clusters

The Trumpler class of this cluster is II 2 m, indicating it is medium-rich in stars (m) with a moderate brightness range (2) and little central concentration of the stars (II).[6] It has about 260 members[2] and an age of approximately 65 million years,[4] although estimates range from 50 to 80 million.[6] A total of fifteen B-type variable stars have been detected in the cluster with four Be stars. Five of the cluster members show hydrogen alpha emission, including a γ Cas and two λ Eri variables.[6]


References


  1. Kerber, F.; et al. (September 2003). "Galactic Planetary Nebulae and their central stars. I. An accurate and homogeneous set of coordinates". Astronomy and Astrophysics. 408 (3): 1029–1035. Bibcode:2003A&A...408.1029K. doi:10.1051/0004-6361:20031046.
  2. Cantat-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.
  3. Crossen, Craig; Rhemann, Gerald (2012). Sky Vistas: Astronomy for Binoculars and Richest-Field Telescopes. Springer Vienna. p. 68. ISBN 9783709106266.
  4. Paunzen, E.; Netopil, M. (October 2006). "On the current status of open-cluster parameters". Monthly Notices of the Royal Astronomical Society. 371 (4): 1641–1647. arXiv:astro-ph/0607421. Bibcode:2006MNRAS.371.1641P. doi:10.1111/j.1365-2966.2006.10783.x.
  5. "NGC 6834". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2022-01-07.
  6. Mathew, Blesson; et al. (September 2014). "Optical/IR studies of Be stars in NGC 6834 with emphasis on two specific stars". Research in Astronomy and Astrophysics. 14 (9). arXiv:1408.6658. Bibcode:2014RAA....14.1173M. doi:10.1088/1674-4527/14/9/008. 1173-1192.
  7. Seligman, Courtney. "NGC Objects: NGC 6800 - 6849". Celestial Atlas. Retrieved 2022-01-08.



На других языках


[de] NGC 6834

NGC 6834 ist die Bezeichnung für einen offenen Sternhaufen im Sternbild Schwan. NGC 6834 hat eine Helligkeit von 7,80 mag und einen Winkeldurchmesser von 6 Bogenminuten. Das Objekt wurde am 17. Juli 1784 von Wilhelm Herschel entdeckt.[4]
- [en] NGC 6834

[ru] NGC 6834

NGC 6834 (другое обозначение — OCL 134) — рассеянное скопление в созвездии Лебедь.



Текст в блоке "Читать" взят с сайта "Википедия" и доступен по лицензии Creative Commons Attribution-ShareAlike; в отдельных случаях могут действовать дополнительные условия.

Другой контент может иметь иную лицензию. Перед использованием материалов сайта WikiSort.org внимательно изучите правила лицензирования конкретных элементов наполнения сайта.

2019-2025
WikiSort.org - проект по пересортировке и дополнению контента Википедии