NGC 6871 explained
| NGC 6871 |
| Epoch: | J2000 |
| Class: | - |
| Ra: | [1] |
| Constellation: | Cygnus |
| Dist Ly: | 5133 ly |
| Dist Pc: | 1574 pc[2] |
| Appmag V: | 5.2[3] |
| V Hb: | - |
| Age: | 9.1 million years |
| Notes: | Presence of eclipsing binary stars [4] |
| Names: | GC 4548, h 2067, Struve 2630 |
NGC 6871 is a small, young open cluster in the constellation of Cygnus. The cluster has fewer than 50 members, most of which are blue and white stars. It is located 5135 light-years from Earth.
NGC 6871 was born in the same giant molecular cloud with at least six other open clusters. The other open clusters are not gravitationally associated with NGC 6871. NGC 6871 itself also seems to be disintegrating.[5]
Prominent stars!Star name!Effective temperature!Absolute magnitude!Bolometric magnitude!Mass !Spectral type!Ref.| HD 190864 | 39900 | -5.5 | -9.3 | 45 | O7III | |
| HD 226868 | 33000 | -6.4 | -9.6 | 40 | O9.7I | |
| HD 227018 | 41000 | -4.9 | -8.8 | 38 | O7V | |
| HD 191201 | 31600 | -5.8 | -8.9 | 35 | B0V | |
| WR 133 A | 70800 | -3.4 | -8.81 | 9.3 | WN5o | [6] [7] |
| ADS 13374 B (Companion to WR 133 A, also WR 133 B) | 30000 | -5.4 | -8.49 | 22.6 | O9.5I | |
| HD 227634 | 29500 | -5.3 | -8.2 | 25 | B0.2III | |
| HD 190919 | 26300 | -5.8 | -8.3 | 25 | B1Ib | |
| BD+35 3955 | 26300 | -5.7 | -8.3 | 24 | B1Ib | |
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External links
Notes and References
- NGC 6871 . 2012-09-21.
- Web site: WEBDA Database . Results for NGC 6871 . 2012-09-21.
- Web site: SEDS' Interactive NGC Catalog Online . Results for NGC 6871 . 2012-09-21.
- Web site: Astronomy Magazine . NGC 6871 - open cluster in Cygnus . 2015-08-18.
- 2211.12843 . 10.1093/mnras/stad071 . 2023MNRAS.521.1399C . Discovery and description of two young open clusters in the primordial group of NGC 6871 . 2023 . Casado . Juan . Hendy . Yasser . Monthly Notices of the Royal Astronomical Society . 521 . 1 . 1399–1407 . free .
- Massey, P.. Degioia-Eastwood, K.. Kathy Eastwood. Waterhouse, E.. 2001. The Progenitor Masses of Wolf-Rayet Stars and Luminous Blue Variables Determined from Cluster Turnoffs. II. Results from 12 Galactic Clusters and OB Associations. The Astronomical Journal. 121. 2. 1050–1070. astro-ph/0010654. 2001AJ....121.1050M. 10.1086/318769. 53345173 .
- Richardson. Noel D.. Lee. Laura. Schaefer. Gail. Shenar. Tomer. Sander. Andreas A. C.. Hill. Grant M.. Fullard. Andrew G.. Monnier. John D.. Anugu. Narsireddy. Davies. Claire L.. Gardner. Tyler. 2021-02-01. The First Dynamical Mass Determination of a Nitrogen-rich Wolf-Rayet Star Using a Combined Visual and Spectroscopic Orbit. The Astrophysical Journal Letters. 908. 1 . L3. 10.3847/2041-8213/abd722. 0004-637X. 2101.04232. 2021ApJ...908L...3R . 231582956 . free .
