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What to observe ?
Eclipsing binaries minima
Exoplanetary transits
Projects and campaigns
EccentriCAT - DEEP (Citizen Astronomy Timing of Eccentric Eclipses) (
1/31/2026 - 1/31/2031)
EccentriCAT - LITE (Citizen Astronomy Timing of Eccentric Eclipses) (
1/31/2026 - 1/31/2031)
Star catalog
All objects
Eclipsing binaries
Intrinsic variables
CzeV catalog
Exoplanet catalog (ETD)
OEJV
Recent
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Recent
List
New minimum
4/7/2026
GT UMa
3
Fabio Di Stefano, Seestar S50, 4/6/2026
Seestar S50
. . .
New observation
4/7/2026
GT UMa
3
Fabio Di Stefano, Seestar S50, 4/6/2026
Seestar S50
. . .
New minimum
4/21/2025
GT UMa
3
Ivan Sergey, Polyani, 4/18/2025
200 mm Newton (SW), HEQ-5, Canon 400D, lens Tair-3 FS, lens Jupiter 21M (4/200),
200 mm Newton (SW), HEQ-5, Canon 400D, lens Tair-3 FS, lens Jupiter 21M (4/200),
lens 4.5/300
I used synthesized brightness values based on AAVSO data (VSP service).
. . .
New observation
4/21/2025
GT UMa
3
Ivan Sergey, Polyani, 4/18/2025
200 mm Newton (SW), HEQ-5, Canon 400D, lens Tair-3 FS, lens Jupiter 21M (4/200),
200 mm Newton (SW), HEQ-5, Canon 400D, lens Tair-3 FS, lens Jupiter 21M (4/200),
lens 4.5/300
. . .
New minimum
4/9/2024
GT UMa
3
Milan Uhlar, JIRNY
QHY294, LNS200, OAT
QHY294, LNS200, OAT
filter: clear
temp: -10C
binning: 2x2
exp_time: 60sec.
equip.: QHY294
lens: 200/8
----- EBFit result: -----
Tmin = 2460409.37263
Error (1 sigma): +0.00069/-0.00079 (Bootstrapping), +0.00015/-0.00028 (Prayer bead), +0.00066/-0.00066 (LSM)
Error (95% CI): +0.00139/-0.00144 (Bootstrapping), +0.00031/-0.00050 (Prayer bead)
LSM: chi^2 = 59.8, n_freedom = 48
. . .
New observation
4/9/2024
GT UMa
3
Milan Uhlar, JIRNY
QHY294, LNS200, OAT
. . .
New star
7/27/1997
GT UMa
3
admin
RA: 158.9833333200, DE: 63.5922222210, MAG (max): 8.150 (), EB
. . .
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