The young open clusters Berkeley 62 and Berkeley 86.
Abstract
Berkeley 62 and Berkeley 86, two previously unstudied open clusters whose brightest probable members are OB stars are discussed. Photoelectric UBV observations show Be 62 lying at a distance of 2.05 + or - 0.24 kpc with a reddening of E(B-V) = 0.86 + or - 0.04 and earliest spectral type B1. It is found that Be 86 lies 1.72 + or - 0.20 kpc from the sun with a reddening of E(B-V) = 0.96 + or - 0.07 and earliest spectral type O9. Spectroscopic observations of six stars in Be 86 indicate a ratio E(U-B)/E(B-V) = 0.77 + or - 0.05, which is in agreement with other determinations made in the Cygnus region. It is noted that both clusters are young enough to be used as spiral arm tracers.
- Publication:
-
Publications of the Astronomical Society of the Pacific
- Pub Date:
- August 1981
- DOI:
- 10.1086/130853
- Bibcode:
- 1981PASP...93..441F
- Keywords:
-
- Open Clusters;
- Stellar Spectrophotometry;
- Ubv Spectra;
- B Stars;
- Electrophotometers;
- Milky Way Galaxy;
- O Stars;
- Star Distribution;
- Astrophysics