Berkeley 86
| Berkeley 86 | |
|---|---|
 | |
| Observation data (J2000 epoch) | |
| Right ascension | 20h 20m 12.0s[1] |
| Declination | +38° 41′ 24″[1] |
| Distance | 1,720 pc |
| Absolute magnitude (V) | 7.9 |
| Apparent dimensions (V) | 5 |
| Physical characteristics | |
| Other designations | OCISM 35, OCl 167.0, MWSC 3316, C 2018+385, OCl 167, KPR2004b 485 |
| Associations | |
| Constellation | Cygnus |
Berkeley 86 is a young open cluster in Cygnus.[2] It is located inside the OB Stellar association Cyg OB 1, and obscured by a foreground dust cloud.[3]
| Star name | Effective temperature | Absolute magnitude | Bolometric magnitude | Mass (M☉) | Spectral type |
|---|---|---|---|---|---|
| WR 139 (V444 Cyg) | 60000 | -4.04 | -8.3 | 9.3 | WN5 |
| HD 193576 B (Companion to WR 139) | 42700 | -5.5 | -9.6 | 53 | O6III |
| HD 228841 | 41000 | -5.4 | -9.3 | 45 | O7V |
| HD 193595 | 38500 | -4.9 | -8.6 | 34 | O8V |
| HD 228969 | 34700 | -5 | -8.4 | 30 | O9.5V |
| HD 228943 | 31600 | -5.3 | -8.4 | 28 | B0V |
References
[edit]- 1 2 "Berkeley 86". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 31 December 2020.
- ↑ Forbes, D. (1981). "The young open clusters Berkeley 62 and Berkeley 86". Publications of the Astronomical Society of the Pacific. 93: 441–446. Bibcode:1981PASP...93..441F. doi:10.1086/130853.
- ↑ Vallenari, A.; Richichi, A.; Carraro, G.; Girardi, L. (1999). "Near-infrared photometry of the young open clusters NGC 1893 and Berkeley 86". Astronomy and Astrophysics. 349: 825–833. arXiv:astro-ph/9909065. Bibcode:1999A&A...349..825V.
- Massey, P.; Degioia-Eastwood, K.; 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. arXiv:astro-ph/0010654. Bibcode:2001AJ....121.1050M. doi:10.1086/318769. S2CID 53345173.
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