About VarAstro

Welcome to VarAstro, unique portal for publication and sharing of photometric data running by Czech Astronomical Society, Variable Star and Exoplanet Section. The portal is a successor of famous web var.astro.cz ran for last two decades, Exoplanet Transit Database (ETD) and O-C gateway.

User Info

Most of functionality of VarAstro is available for logged users. If you don't have logging credentials, you can create your own new account free of charge. If you had an account at portal var2.astro.cz, use the same e-mail address as a login and you can migrate all your data easily to the new portal. | Login, Register

Object search

Star catalog

Enter full or partial star name
Or enter equatorial coordinates (J2000.0)

Exoplanet catalog

Enter full or partial exoplanet name
Or enter equatorial coordinates (J2000.0)

VarAstro Data Statistics

Objects last month

43

Objects total in database

54617

Observations last month

65

Observations total in database

55610

Minima in last month

14

Minima total in database

256593

Transits in last month

20

Transits total in database

8532

Active observers last month

11

Observers total in database

800

Most active last month

Martin Mašek

Most observed last month

TrES-2

Recent

New transit 10/15/2024

XO-7 b

3
   
avatar Jan Hykel, Brno - balkon, 9/6/2023

WO REF 51/250 + ZWO ASI !600mm

New minimum 10/6/2024

U Peg

8
   
avatar Jan Hykel, Brno - balkon, 10/29/2021

WO REF 51/250 + ZWO ASI !600mm

New observation 10/1/2024

TrES-2

281
   
avatar Mario Morales Aimar, Observatorio de Sencelles, 9/10/2023

Newtonian 250 mm f4, SBIG ST-7XME

New exoplanet 10/2/2024
   
avatar Nikola Antonov, Meshtitsa Backyard Home Observatory, Pernik Municipality
TOI-1460.01 b

RA: 01h 22m 26.50s, DE: +26° 55' 33.00"

New star 10/9/2024
avatar Milan Uhlar, Jirny
UCAC4 631-100581

RA: 20h 23m 37.41s, DE: +36° 05' 23.59", MAG (max): 10.860