Astronomy and Astrophysics – Astrophysics
Scientific paper
Mar 1982
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1982a%26as...47..471g&link_type=abstract
Astronomy and Astrophysics Supplement Series, vol. 47, Mar. 1982, p. 471-480.
Astronomy and Astrophysics
Astrophysics
21
Main Sequence Stars, Stellar Motions, Stellar Parallax, Stellar Spectrophotometry, Dwarf Stars, Hertzsprung-Russell Diagram, Stellar Luminosity, Visual Photometry
Scientific paper
The mean color-luminosity relations MV-(B-V), MV-(R-I), and MR-(R-I), for main-sequence stars in the MV range +4 to +14, have been derived from the Eggen (1979, 1980) U, B, V, and/or R, I photometry for over 800 stars with annual proper motion of 0.7 arcsec or more. Only stars with good trigonometric parallax percent accuracies are employed. Photometric parallaxes greater than 0.04 arcsec are determined from these relations for the case of nearly 90 objects whose distances remain unknown, of which the majority are red dwarfs.
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