Welcome to var.astro.cz, an internet portal of Czech variable star researchers!

Variable Star and Exoplanet Section of Czech Astronomical Society was found in 1924 (as Variable Star Section of CAS). Since the time, it's an organisation coordinating research and observing of variable stars (and exoplanets in last years) in Czech republic (member of EU). Members of our Section are mostly advanced amateur and professional astronomers.

Main observing and research activities are collected in 4 projects:

  • Project B.R.N.O. - observing and research of eclipsing binaries
  • Project MEDUZA - observing and research of intrinsic variables (mostly long period red variables SR, M, RCB, ...)
  • Project TRESCA - observing and searching for new transiting exoplanets.
  • Project HERO - observing and research of high energy sources (x-ray, gamma-rays).

President of the Section: Lubos Brat, e-mail: brat@pod.snezkou.cz
Address: Velka Upa 193, 542 21 Pec pod Snezkou


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> Minima predictions <

> Transits predictions <

New minimas B.R.N.O.:

New transits TRESCA:

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