Lichtelektrische Beobachtungen an Cygnus X-1
Abstract
Photoelectric measurements of Cygnus X-1 were carried out in UBV with the 40-cm Cassegrain telescope at Tuebingen during May-October 1975. A light curve is presented which exhibits a sinusoidal double-wave with two equally deep minima and amplitudes of 0.08 of the magnitude class in yellow and 0.07 of the magnitude class in blue.
- Publication:
-
Mitteilungen der Astronomischen Gesellschaft Hamburg
- Pub Date:
- 1978
- Bibcode:
- 1978MitAG..43..225K
- Keywords:
-
- Cygnus Constellation;
- Light Curve;
- Stellar Spectrophotometry;
- Telescopes;
- X Ray Sources;
- Astronomical Models;
- Cassegrain Optics;
- Electrophotometry;
- Ubv Spectra;
- X Ray Astronomy;
- Astronomy