Four-colour photometric observations of the X-ray binary star HD 77581 (Vela X-1). I. Observations.
Results of the uvby observations of HD 77581, used in the analysis of the light curves (Zuiderwijk et al. 1976) are presented. Key words: X-ray binaries - uvby photometry
Astronomy and Astrophysics Supplement Series
- Pub Date:
- March 1977