NGC 6871

NGC 6871 is a small, young open cluster in the constellation of Cygnus. The cluster has less than 50 members, most of which are blue and white stars. It is located 5135 light-years from Earth.

Map showing location of NGC 6871
Prominent stars
Star name Effective temperature Absolute magnitude Bolometric magnitude Mass (M☉) Spectral type Ref.
HD 190864 39900 -5.5 -9.3 45 O7III [5]
HD 226868 33000 -6.4 -9.6 40 O9.7I [5]
HD 227018 41000 -4.9 -8.8 38 O7V [5]
HD 191201 31600 -5.8 -8.9 35 B0V [5]
WR 133 60000 -3.4 -8.4 10 WN5 [5]
ADS 13374 B (Companion to WR 133) 31500 -5.4 -8.5 29 O9.5I [5]
HD 227634 29500 -5.3 -8.2 25 B0.2III [5]
HD 190919 26300 -5.8 -8.3 25 B1Ib [5]
BD+35 3955 26300 -5.7 -8.3 24 B1Ib [5]
NGC 6871
NGC 6871, taken from Stellarium
Observation data (J2000 epoch)
ConstellationCygnus
Right ascension20h 05m 59s[1]
Declination+35° 46.6′[1]
Distance5133 ly (1574 pc[2])
Apparent magnitude (V)5.2[3]
Physical characteristics
Mass- M☉
Radius-
Estimated age9.1 million years
Notable featuresPresence of eclipsing binary stars [4]
Other designationsGC 4548, h 2067, Struve 2630[3]

References
  1. "NGC 6871". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 2012-09-21.
  2. "Results for NGC 6871". WEBDA Database. Retrieved 2012-09-21.
  3. "Results for NGC 6871". SEDS' Interactive NGC Catalog Online. Retrieved 2012-09-21.
  4. "Astronomy Magazine". NGC 6871 - open cluster in Cygnus. Retrieved 2015-08-18.
  5. 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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