The results of photoelectric observations of V1057 Cygni.
Abstract
The results of photoelectric UBV and Hα observations of V1057 Cyg accomplished during 1978 - 1981 are presented. It is shown that the brightness of the star in B and V bands diminishes in waves, having a characteristic time of more than 200 days. The mean rate of brightness decrease during 1979 - 1981 has increased in comparison to that during 1976 - 1979. An irregular change of brightness is observed in the U band and Hα line.
- Publication:
-
Astrofizika
- Pub Date:
- July 1983
- Bibcode:
- 1983Afz....19..525O
- Keywords:
-
- Stellar Spectrophotometry;
- Variable Stars;
- Brightness;
- H Alpha Line;
- Light Curve;
- Stellar Flares;
- Ubv Spectra;
- Astronomy