Spectral classification and UBV photometry of bright visual double stars.
Abstract
Spectral types, luminosity classes, and photoelectric UBV magnitudes are presented for the components of 91 visual double-star systems. The spectrograms used for classification were obtained with a reciprocal dispersion of 128 A/mm, and the UBV observations were made at projected diaphragm sizes of 15, 20, and 33 arcsec. The problem of scattered light arising during photoelectric observations of visual binaries is discussed.
- Publication:
-
The Astronomical Journal
- Pub Date:
- June 1977
- DOI:
- 10.1086/112066
- Bibcode:
- 1977AJ.....82..431L
- Keywords:
-
- Binary Stars;
- Stellar Luminosity;
- Stellar Spectrophotometry;
- Ubv Spectra;
- Astronomical Catalogs;
- B Stars;
- Classifications;
- O Stars;
- Stellar Magnitude;
- Astronomy