Variable Star and Exoplanet Section of Czech Astronomical Society

19. 1. 2012 (TRESCA) 6 recently published transiting exoplanets were added to ETD: Kepler-21 b, HAT-P-34 b, HAT-P-35 b, HAT-P-36 b, HAT-P-37 ...

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.:

AP Aur (J. Trnka)
IT Cnc (F. Scaggiante)
MM Com (M. Lehky)
IO Cnc (M. Lehky)
IN Cnc (M. Lehky)
V 512 And (M. Lehky)
FW Her (M. Lehky)
FW Her (M. Lehky)
GU Boo (M. Lehky)
GU Boo (M. Lehky)

New transits TRESCA:

HAT-P-20 b (J. Trnka)
HAT-P-22 b (S. Shadick)
CoRoT-20 b (F. Lomoz)
XO-2 b (F. Emering)
GJ436 b (V. Slesarenko, E. Sokov)
HAT-P-36 b (V. Slesarenko, E. Sokov)
GJ436 b (F. Emering)
HAT-P-32 b (G. Corfini)
Qatar-2 b (I. Vereshchagina, E. Sokov)
HAT-P-20 b (F. Emering)

New data MEDUZA & HERO:

CCD:
M. Lehký: NGC4151 CVn, V 407 Cyg, V 1107 Her, YY Her, AX Per, MKN421 UMa,
P. Dubovský: 3C 66A And, NSV 16874 Aur, S5 0716+714 Cam, 1ES 2344+514 Cas,

VIZ:
J. Speil: CQ And, RX And, SX And, UW And, UX And, VX And, Z And, RX Boo, SU Cam, X Cam, Z Cam, AA Cas, EQ Cas, T Cep, OMI Cet, T CrB, TX CVn, AA Cyg, AF Cyg, BF Cyg,

Currently operating observers:
Observers on-line chat

Chlumčany
(Martin Zíbar)

STATUS: Is active 21:00 - 07:00

PROGRAM: HAT-P-20 b Gem - zkouška dalekohledu.

Městská hvězdárna Slaný MPC C11
(Jaroslav Trnka)

STATUS: Is active 18:00 - 07:00

PROGRAM: AP Aur, HAT-P-20 b Gem, HR Gem, V1060 Her