Berkeley 86

Berkeley 86
Berkeley 86
Observation data (J2000 epoch)
Constellation	Cygnus
Right ascension	20h 20m 12.0s
Declination	+38° 41′ 24″
Distance	1,720 pc
Apparent dimensions (V)	5
Physical characteristics
Other designations	OCISM 35, OCl 167.0, MWSC 3316, C 2018+385, OCl 167,KPR2004b 485
	See also: Open cluster, List of open clusters

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]

Prominent stars^[4]
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[]

^ ^a ^b "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.

Coordinates: 20^h 20^m 12.0^s, +38° 41′ 24″

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[simbad-1] "Berkeley 86". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 31 December 2020.

[2] 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.

[3] 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-4] 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.

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