UVBY photometry of open clusters. II. NGC 6871.
Abstract
The uvby photometry on the young open cluster NGC 6871 available from Crawford and Barnes (1974) is extended to establish more accurate characteristic data on the cluster and its individual members and to determine the color excess ratio E(b-y)/E(B-V) for the cluster stars. A true mean distance modulus of 11.94 mag + or - 0.08 mag is obtained, equivalent to a distance of 2440 + or - 100 pc. An age of 1.2 x 120 to the 7th yr is derived for the clusters.
- Publication:
-
Astronomische Nachrichten
- Pub Date:
- 1989
- DOI:
- 10.1002/asna.2113100407
- Bibcode:
- 1989AN....310..273R
- Keywords:
-
- Astronomical Photometry;
- Interstellar Extinction;
- Open Clusters;
- Stellar Magnitude;
- Ubv Spectra;
- Cygnus Constellation;
- H Beta Line;
- Infrared Sources (Astronomy);
- Milky Way Galaxy;
- Astrophysics