Light curves of several semiregular and symbiotic variables from my program. Visual estimates together with data from ASAS-SN survey and CCD observations from AAVSO database. Some time visual data are useful (WY And), sometime the advantage of one visual observer is visible (CH Cyg), sometime visual data fill the gap in the survey data (TZ …
Author Archives: dpv
V723 Cas
Nova Cas 1995 probably finished its long supersoft X-ray source phase. This SSS phase was accompanied with periodic (0.6932672d) brightness variation interpreted as orbital wave. The amplitude of these variations increased until 2005. It reached 2.0 mag in the B band. Then it was decreasing slowly. The abrupt change came in 2015. Goranskij et al. …
Eclipsing polar V808 Aur
Previously known as CRTS J071126.0+440405 discovered in January 2009 by Catalina Sky Survey as relatively bright polar with deep eclipses. In the active state there is a pre-eclipse dip at phase -0.13 interpreted as eclipse caused by accretion stream falling toward white dwarf. The deep eclipse is the occultation of the hot spot by the …
Madeira 2023
Another full family trip after 3 3-year long gap. Besides the wellness for the rest of the family, my main goal was to make the first steps in the telescope hosting project. Indeed, the meetings with the president of Ponta do Sol and Calheta municipalities took place. The next steps are to prepare the project …
Madeira 2019
https://photos.app.goo.gl/wNQuh1DtUAXtcPpP7
Fuerteventura 2019
https://photos.app.goo.gl/nJdwwA9vug23HDCt6