14. 3. 2010 (MEDUZA) Our photometric data of V 407 Cygni from years 2002 - 2009. We've processed the V, Rc and Ic photometric da...

 12. 3. 2010 (TRESCA) New observing campaign: Search for HAT-P-13 c transit...

 12. 3. 2010 (TRESCA) New transiting exoplanet HAT-P-14 in Hercules G. Torres, G. A. Bakos et al. has published another transiting ex...

 8. 3. 2010 (MEDUZA) GK Per is going to outburst. Based on last news from VSNET observers, this recurrent nova brighten up from its st...

 15. 2. 2010 (WWW) Transfer of our web var2.astro.cz to another server of Czech astronomical society was done. All funcio...

 28. 12. 2009 (TRESCA) AV CMi - eclipsing binary with transiting exoplanet? A. Liakos and P. Niarchos has found periodic ...



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 coordining 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.:

CzeV149 Gem (F. Lomoz)
CzeV149 Gem (F. Lomoz)
XZ Leo (F. Marchi)
RW Tau (F. Marchi)
FW Her (M. Lehky)
UX CrB (M. Lehky)
KW Pup (M. Lehky)
V 785 Cas (L. Šmelcer)
V 785 Cas (L. Šmelcer)
V 785 Cas (L. Šmelcer)

New transits TRESCA:

TrES-1 b (Š. Dyčková)
WASP-12 b (F. Lomoz)
XO-4 b (J. Trnka)
WASP-14 b (R. Kocián)
HAT-P-3 b (D. Gary)
HAT-P-3 b (B. Tieman)
WASP-19 b (J. Colque)
WASP-12 b (G. Haagen)
HAT-P-13 b (B. Tieman)
HAT-P-12 b (B. Tieman)

Currently operating observers:
Observers on-line chat


No logged observers are currently operating.