Photometry of Dwarf K and M Stars
Abstract
An observational program using UBVRI photometry is presented for 688 stars from among the dwarf K and M stars already found spectroscopically by Vyssotsky (1958). Of these, 211 have not been observed photometrically. These observations were obtained over a period of several years at the Kitt Peak National Observatory using a GaAs photomultiplier with an 0.9 m reflector. Based on night-to-night variations in the measures of individual stars, the internal errors may be estimated to be roughly 0.01 mag for the colors and 0.015 for the V magnitudes. The photometric parallaxes reported for each star were computed in the manner discussed by Weis (1986).
- Publication:
-
The Astronomical Journal
- Pub Date:
- May 1993
- DOI:
- 10.1086/116571
- Bibcode:
- 1993AJ....105.1962W
- Keywords:
-
- Astronomical Photometry;
- Dwarf Stars;
- K Stars;
- M Stars;
- Ubv Spectra;
- Gallium Arsenides;
- Photomultiplier Tubes;
- Stellar Color;
- Astronomy;
- STARS: GENERAL