Recent

New minimum 9/2/2026

GW Cep

123

Alessandro Giacobbe , 9/1/2026

Seestar S50

. . .

New observation 9/2/2026

GW Cep

123

Alessandro Giacobbe , 9/1/2026

Seestar S50

. . .

New observation 6/25/2025

GW Cep

123

Martin Magris, Trieste, 6/24/2025

NWT, 200/800 + QHY294 Mono + Coma corrector + V filter

. . .

New minimum 8/30/2024

SkyWatcher Newton 200/1200
#Observatory>Kolonica
#Observer>Matus Kamenec
#Telescope>SkyWatcher 200/1200 / EQ6
#Instrument>MI G2-8300
#Filter>sloan g
#Exposure>60s
#Target>GW Cep
#Position>
#MainComp>
#Source>
#Magnitude system>
#Time system>JD geocentric
#Reduction>Muniwin
#Comment>

----- EBFit result: -----
Tmin = 2460552.53368
Error (1 sigma): +0.00017/-0.00023 (Bootstrapping), +0.00009/-0.00010 (Prayer bead), +0.00007/-0.00007 (LSM)
Error (95% CI): +0.00037/-0.00043 (Bootstrapping), +0.00019/-0.00023 (Prayer bead)
LSM: chi^2 = 198.0, n_freedom = 20

. . .

New observation 8/30/2024

GW Cep

123

Matúš Kamenec, Kolonica

SkyWatcher Newton 200/1200

SkyWatcher Newton 200/1200
#Observatory>Kolonica
#Observer>Matus Kamenec
#Telescope>SkyWatcher 200/1200 / EQ6
#Instrument>MI G2-8300
#Filter>sloan g
#Exposure>60s
#Target>GW Cep
#Position>
#MainComp>
#Source>
#Magnitude system>
#Time system>JD geocentric
#Reduction>Muniwin
#Comment>

----- EBFit result: -----
TminGJD = 2460552.53368
Error (1 sigma): +0.00020/-0.00020 (Bootstrapping), +0.00009/-0.00010 (Prayer bead), +0.00007/-0.00007 (LSM)
Error (95% CI): +0.00039/-0.00040 (Bootstrapping), +0.00019/-0.00023 (Prayer bead)
LSM: chi^2 = 198.0, n_freedom = 20
secondary minimum

. . .

New observation 8/1/2024

GW Cep

123

Matúš Kamenec, Kolonica

SkyWatcher Newton 200/1200

SkyWatcher Newton 200/1200
#Observatory>Kolonica
#Observer>Matus Kamenec
#Telescope>SkyWatcher 200/1200 / EQ6
#Instrument>MI G2-8300
#Filter>sloan g
#Exposure>30s
#Target>GW Cep
#Position>
#MainComp>
#Source>
#Magnitude system>
#Time system>JD geocentric
#Reduction>Muniwin
#Comment>

. . .

New observation 8/13/2023

GW Cep

123

Matúš Kamenec, Kolonica

SkyWatcher Newton 200/1200

SkyWatcher Newton 200/1200
#Observatory>Kolonica
#Observer>Matus Kamenec
#Telescope>SkyWatcher 200/1200 / EQ6
#Instrument>Canon EOS 500D
#Filter>Clear
#Exposure>30s ISO 800
#Target>GW Cep
#Position>
#MainComp>
#Source>
#Magnitude system>
#Time system>JD geocentric
#Reduction>Muniwin
#Comment>

----- EBFit result: -----
TminGJD = 2460149.37285
Error (1 sigma): +0.00017/-0.00016 (Bootstrapping), +0.00009/-0.00007 (Prayer bead), +0.00005/-0.00005 (LSM)
Error (95% CI): +0.00034/-0.00032 (Bootstrapping), +0.00013/-0.00012 (Prayer bead)
LSM: chi^2 = 513.7, n_freedom = 68

. . .

New observation 3/18/2023

GW Cep

123

Matúš Kamenec, Prešov

SkyWatcher Newton 102/500

SkyWatcher Newton 102/500
#Observatory>Presov
#Observer>Matus Kamenec
#Telescope>SkyWatcher 102/500 / EQ3-2 GoTo
#Instrument>Canon EOS 500D
#Filter>Clear
#Exposure>30s ISO 800
#Target>GW Cep
#Position>
#MainComp>
#Source>
#Magnitude system>
#Time system>JD geocentric
#Reduction>MuniWin
#Comment>CCDCiel

----- EBFit result: -----
TminGJD = 2459991.22982
Error (1 sigma): +0.00020/-0.00026 (Bootstrapping), +0.00015/-0.00017 (Prayer bead), +0.00018/-0.00018 (LSM)
Error (95% CI): +0.00036/-0.00053 (Bootstrapping), +0.00033/-0.00031 (Prayer bead)
LSM: chi^2 = 82.0, n_freedom = 55

. . .

New observation 3/18/2023

GW Cep

123

Matúš Kamenec, Prešov

SkyWatcher Newton 102/500

SkyWatcher Newton 102/500
#Observatory>Presov
#Observer>Matus Kamenec
#Telescope>SkyWatcher 102/500 / EQ3-2 GoTo
#Instrument>Canon EOS 500D
#Filter>Clear
#Exposure>30s ISO 800
#Target>GW Cep
#Position>
#MainComp>
#Source>
#Magnitude system>
#Time system>JD geocentric
#Reduction>MuniWin
#Comment>CCDCiel

----- EBFit result: -----
TminGJD = 2459990.27344
Error (1 sigma): +0.00017/-0.00025 (Bootstrapping), +0.00026/-0.00032 (Prayer bead), +0.00017/-0.00017 (LSM)
Error (95% CI): +0.00037/-0.00054 (Bootstrapping), +0.00036/-0.00044 (Prayer bead)
LSM: chi^2 = 106.0, n_freedom = 55

. . .

New minimum 11/8/2022

GW Cep

123

M. Magris, Trieste, Italy

NWT, 200/800 + QHY294 Mono + Coma corrector

NWT, 200/800 + QHY294 Mono + Coma corrector
----- EBFit result: -----
Tmin = 2459891.43347
Error (1 sigma): +0.00015/-0.00017 (Bootstrapping), +0.00006/-0.00009 (Prayer bead), +0.00002/-0.00002 (LSM)
Error (95% CI): +0.00032/-0.00030 (Bootstrapping), +0.00012/-0.00013 (Prayer bead)
LSM: chi^2 = 5936.6, n_freedom = 97

. . .

New observation 8/31/2022

GW Cep

123

Ladislav Šmelcer, Hvězdárna Valašské Meziříčí

Celestron SCT 280/1765 + MII G2-4000

Celestron SCT 280/1765 + MII G2-4000
předpověď primárního minima JDhel=24592459795.4084 - 21h48m UT (Mo=51799.4844 per.= 0.31882946 dne) - minimum nastalo o 1h25m později

. . .

New observation 8/31/2022

GW Cep

123

Ladislav Šmelcer, Hvězdárna Valašské Meziříčí

Celestron SCT 280/1765 + MII G2-4000

Celestron SCT 280/1765 + MII G2-4000
předpověď primárního minima JDhel=24592459795.4084 - 21h48m UT (Mo=51799.4844 per.= 0.31882946 dne) - minimum nastalo o 1h25m později

. . .

New minimum 8/31/2022

GW Cep

123

Ladislav Šmelcer, Hvězdárna Valašské Meziříčí

Celestron SCT 280/1765 + MII G2-4000

Celestron SCT 280/1765 + MII G2-4000

----- EBFit result: -----
Tmin = 2459795.46948
Error (1 sigma): +0.00013/-0.00014 (Bootstrapping), +0.00003/-0.00003 (Prayer bead), +0.00002/-0.00002 (LSM)
Error (95% CI): +0.00028/-0.00025 (Bootstrapping), +0.00005/-0.00006 (Prayer bead)
LSM: chi^2 = 3592.6, n_freedom = 107

. . .

New minimum 8/31/2022

GW Cep

123

Ladislav Šmelcer, Hvězdárna Valašské Meziříčí

Celestron SCT 280/1765 + MII G2-4000

Celestron SCT 280/1765 + MII G2-4000

----- EBFit result: -----
Tmin = 2459795.46941
Error (1 sigma): +0.00016/-0.00016 (Bootstrapping), +0.00002/-0.00002 (Prayer bead), +0.00004/-0.00004 (LSM)
Error (95% CI): +0.00038/-0.00034 (Bootstrapping), +0.00004/-0.00005 (Prayer bead)
LSM: chi^2 = 1573.6, n_freedom = 96

. . .

New minimum 8/26/2022

GW Cep

123

Vojtěch Školník, Hvězdárna Valašské Meziříčí

Sct 200/2000 + MI C2-7000A

Sct 200/2000 + MI C2-7000A

----- EBFit result: -----
Tmin = 2459817.46746
Error (1 sigma): +0.00006/-0.00008 (Bootstrapping), +0.00002/-0.00004 (Prayer bead), +0.00005/-0.00005 (LSM)
Error (95% CI): +0.00013/-0.00015 (Bootstrapping), +0.00005/-0.00006 (Prayer bead)
LSM: chi^2 = 124.8, n_freedom = 47

. . .

New observation 8/26/2022

GW Cep

123

Vojtěch Školník, Hvězdárna Valašské Meziříčí

Sct 200/2000 + MI C2-7000A

Sct 200/2000 + MI C2-7000A

----- EBFit result: -----
TminGJD = 2459817.46745
Error (1 sigma): +0.00007/-0.00008 (Bootstrapping), +0.00003/-0.00004 (Prayer bead), +0.00005/-0.00005 (LSM)
Error (95% CI): +0.00014/-0.00014 (Bootstrapping), +0.00006/-0.00006 (Prayer bead)
LSM: chi^2 = 124.8, n_freedom = 47

. . .

New observation 8/6/2022

GW Cep

123

Matúš Kamenec, Kolonica

SkyWatcher Newton 200/1200

SkyWatcher Newton 200/1200
#Observatory>Kolonica
#Observer>Matus Kamenec
#Telescope>SkyWatcher 200/1200 / EQ6
#Instrument>Canon EOS 500D
#Filter>Clear
#Exposure>30s ISO 800
#Target>GW Cep
#Position>
#MainComp>
#Source>
#Magnitude system>
#Time system>JD geocentric
#Reduction>Muniwin
#Comment>

----- EBFit result: -----
TminGJD = 2459797.38136
Error (1 sigma): +0.00009/-0.00008 (Bootstrapping), +0.00002/-0.00002 (Prayer bead), +0.00003/-0.00003 (LSM)
Error (95% CI): +0.00017/-0.00017 (Bootstrapping), +0.00003/-0.00004 (Prayer bead)
LSM: chi^2 = 925.8, n_freedom = 104

. . .

New observation 6/16/2022

GW Cep

123

Matúš Kamenec, Kolonica

SkyWatcher Newton 200/1200

SkyWatcher Newton 200/1200
SkyWatcher REF 200/1200
#Observatory>Kolonica
#Observer>Matus Kamenec
#Telescope>SkyWatcher 200/1200 / EQ6
#Instrument>Canon EOS 500D
#Filter>V (G-channel converted)
#Exposure>30s ISO 800
#Target>GW Cep
#Position>
#MainComp>
#Source>
#Magnitude system>
#Time system>JD geocentric
#Reduction>Muniwin
#Comment>

----- EBFit result: -----
TminGJD = 2459746.36970
Error (1 sigma): +0.00012/-0.00011 (Bootstrapping), +0.00003/-0.00003 (Prayer bead), +0.00005/-0.00005 (LSM)
Error (95% CI): +0.00023/-0.00023 (Bootstrapping), +0.00005/-0.00005 (Prayer bead)
LSM: chi^2 = 632.9, n_freedom = 122

. . .

New observation 6/16/2022

GW Cep

123

Matúš Kamenec, Prešov

SkyWatcher Newton 102/500

SkyWatcher Newton 102/500
SkyWatcher REF 102/500
#Observatory>Presov
#Observer>Matus Kamenec
#Telescope>SkyWatcher 102/500 / EQ3-2 GoTo
#Instrument>Canon EOS 500D
#Filter>V (G-channel converted)
#Exposure>30s ISO 800
#Target>GW Cep
#Position>
#MainComp>
#Source>
#Magnitude system>
#Time system>JD geocentric
#Reduction>Muniwin
#Comment>

----- EBFit result: -----
TminGJD = 2459746.36957
Error (1 sigma): +0.00028/-0.00027 (Bootstrapping), +0.00026/-0.00033 (Prayer bead), +0.00022/-0.00022 (LSM)
Error (95% CI): +0.00051/-0.00060 (Bootstrapping), +0.00056/-0.00083 (Prayer bead)
LSM: chi^2 = 248.7, n_freedom = 116

. . .

New minimum 5/1/2022

GW Cep

123

Filip Walter, Štefánik Observatory, Prague, Czech Republic

Skywatcher REF 102/600 + DSLR Canon 450Dm

Skywatcher REF 102/600 + DSLR Canon 450Dm
V2_C5_60C2

DSLR Astromodified

----- EBFit result: -----
Tmin = 2458314.49251
Error (1 sigma): +0.00021/-0.00023 (Bootstrapping), +0.00006/-0.00006 (Prayer bead), +0.00013/-0.00013 (LSM)
Error (95% CI): +0.00043/-0.00042 (Bootstrapping), +0.00011/-0.00008 (Prayer bead)
LSM: chi^2 = 143.9, n_freedom = 47

. . .

New observation 5/1/2022

GW Cep

123

Filip Walter, Štefánik Observatory, Prague, Czech Republic

Skywatcher REF 102/600 + DSLR Canon 450Dm

Skywatcher REF 102/600 + DSLR Canon 450Dm
V2_C5_60C2

DSLR Astromodified

. . .

New minimum 3/17/2022

GW Cep

123

Matúš Kamenec, Prešov

SkyWatcher REF 102/500

SkyWatcher REF 102/500
Observatory>Presov
#Observer>Matus Kamenec
#Telescope>SkyWatcher 102/500 / EQ3-2 GoTo
#Instrument>Canon EOS 500D
#Filter>V (G-converted Bayer mask)
#Exposure>60s ISO 1600
#Target>GW Cep
#Position>
#MainComp>
#Source>
#Magnitude system>
#Time system>JD geocentric
#Reduction>Muniwin
#Comment>bit cloudy after minimum

----- EBFit result: -----
Tmin = 2459653.42993
Error (1 sigma): +0.00041/-0.00041 (Bootstrapping), +0.00134/-0.00108 (Prayer bead), +0.00029/-0.00029 (LSM)
Error (95% CI): +0.00092/-0.00071 (Bootstrapping), +0.00238/-0.00137 (Prayer bead)
LSM: chi^2 = 199.0, n_freedom = 123

. . .

New observation 3/17/2022

GW Cep

123

Matúš Kamenec, Prešov

SkyWatcher REF 102/500

SkyWatcher REF 102/500
Observatory>Presov
#Observer>Matus Kamenec
#Telescope>SkyWatcher 102/500 / EQ3-2 GoTo
#Instrument>Canon EOS 500D
#Filter>V (G-converted Bayer mask)
#Exposure>60s ISO 1600
#Target>GW Cep
#Position>
#MainComp>
#Source>
#Magnitude system>
#Time system>JD geocentric
#Reduction>Muniwin
#Comment>bit cloudy after minimum

----- EBFit result: -----
TminGJD = 2459653.42973
Error (1 sigma): +0.00038/-0.00040 (Bootstrapping), +0.00103/-0.00117 (Prayer bead), +0.00031/-0.00031 (LSM)
Error (95% CI): +0.00083/-0.00073 (Bootstrapping), +0.00235/-0.00170 (Prayer bead)
LSM: chi^2 = 164.7, n_freedom = 111
secondary minimum

. . .

New observation 3/17/2022

GW Cep

123

Matúš Kamenec, Prešov

SkyWatcher REF 102/500

SkyWatcher REF 102/500
Observatory>Presov
#Observer>Matus Kamenec
#Telescope>SkyWatcher 102/500 / EQ3-2 GoTo
#Instrument>Canon EOS 500D
#Filter>V (G-converted Bayer mask)
#Exposure>60s ISO 1600
#Target>GW Cep
#Position>
#MainComp>
#Source>
#Magnitude system>
#Time system>JD geocentric
#Reduction>Muniwin
#Comment>

----- EBFit result: -----
TminGJD = 2459652.31275
Error (1 sigma): +0.00024/-0.00025 (Bootstrapping), +0.00007/-0.00009 (Prayer bead), +0.00018/-0.00018 (LSM)
Error (95% CI): +0.00051/-0.00051 (Bootstrapping), +0.00018/-0.00018 (Prayer bead)
LSM: chi^2 = 156.7, n_freedom = 89

. . .

New minimum 3/11/2022

GW Cep

123

CCD Sekce Štefánikova hvězdárna, Štefánik observatory, Prague

MARK Meade SCT 406/4060 + CCD SBIG ST10XME

MARK Meade SCT 406/4060 + CCD SBIG ST10XME
V1_ST10_30R4_8x8

Vyborne počasí v pruběhu měření výrazné rozostřování + konická vada, zpracovával jsem jeden filtr 3 hodiny

----- EBFit result: -----
Tmin = 2459649.60342
Error (1 sigma): +0.00011/-0.00011 (Bootstrapping), +0.00003/-0.00002 (Prayer bead), +0.00008/-0.00008 (LSM)
Error (95% CI): +0.00024/-0.00021 (Bootstrapping), +0.00004/-0.00004 (Prayer bead)
LSM: chi^2 = 175.3, n_freedom = 82

. . .

New minimum 3/11/2022

GW Cep

123

CCD Sekce Štefánikova hvězdárna, Štefánik observatory, Prague

MARK Meade SCT 406/4060 + CCD SBIG ST10XME

MARK Meade SCT 406/4060 + CCD SBIG ST10XME
V1_ST10_30R4_8x8

Vyborne počasí v pruběhu měření výrazné rozostřování + konická vada, zpracovával jsem jeden filtr 3 hodiny

----- EBFit result: -----
Tmin = 2459649.44221
Error (1 sigma): +0.00010/-0.00009 (Bootstrapping), +0.00011/-0.00016 (Prayer bead), +0.00008/-0.00008 (LSM)
Error (95% CI): +0.00020/-0.00019 (Bootstrapping), +0.00017/-0.00023 (Prayer bead)
LSM: chi^2 = 120.2, n_freedom = 74

. . .

New observation 11/8/2021

GW Cep

123

Pavol A. Dubovsky, AO Kolonica

M20 RL 200/2000

M20 RL 200/2000
#Observatory>Kolonica
#Observer>DPV
#Telescope>M20
#Instrument>MII G2-1600
#Filter/Exposure>V 60s;Ic 60s
#Target>GW Cep
#Position>01:45:58.60;+80:04:55.3
#MainComp>01:47:25.60;+80:07:29.1;B=12.302;V=11.487;R=11.040;I=10.621
#Source>APASS
#Time system>JD geocentric
#Magnitude system>ABS
#Reduction process>Ensemble photometry with CoLiTecVS
#Comment>

. . .

New observation 11/8/2021

GW Cep

123

Pavol A. Dubovsky, AO Kolonica

M20 RL 200/2000

. . .

New observation 11/7/2021

GW Cep

123

Červinka Ladislav, Dolní Bousov

NWT 200/1000, Atik 314L+

. . .

New minimum 11/7/2021

GW Cep

123

Ladislav Červinka, Dolní Bousov

NWT 200/1000, Atik 314L+

NWT 200/1000, Atik 314L+

----- EBFit result: -----
Tmin = 2459525.41444
Error (1 sigma): +0.00010/-0.00011 (Bootstrapping), +0.00024/-0.00028 (Prayer bead), +0.00003/-0.00003 (LSM)
Error (95% CI): +0.00019/-0.00020 (Bootstrapping), +0.00039/-0.00037 (Prayer bead)
LSM: chi^2 = 5447.1, n_freedom = 346

. . .

New observation 10/16/2021

GW Cep

123

Červinka Ladislav, Dolní Bousov

NWT 200/1000, Atik 314L+

. . .

New observation 9/25/2020

GW Cep

123

Pavol A. Dubovsky, AO Kolonica

Celestron 14

Celestron 14
#Observatory>Kolonica
#Observer>DPV
#Telescope>C14
#Instrument>MII G2-1600
#Filter>V
#Exposure>60.0
#Target>GW Cep
#Position>01:45:58.60;+80:04:55.3
#MainComp>01:47:25.60;+80:07:29.1;B=12.302;V=11.487;R=11.040;I=10.621
#Source>APASS
#Time system>JD geocentric
#Magnitude system>DIF
#Reduction process>Ensemble photometry with CoLiTecVS
#Comment>

. . .

New observation 9/25/2020

GW Cep

123

Pavol A. Dubovsky, AO Kolonica

Celestron 14

Celestron 14
#Observatory>Kolonica
#Observer>DPV
#Telescope>C14
#Instrument>MII G2-1600
#Filter>I
#Exposure>60.0
#Target>GW Cep
#Position>01:45:58.60;+80:04:55.3
#MainComp>01:47:25.60;+80:07:29.1;B=12.302;V=11.487;R=11.040;I=10.621
#Source>APASS
#Time system>JD geocentric
#Magnitude system>DIF
#Reduction process>Ensemble photometry with CoLiTecVS
#Comment>

. . .

New minimum 9/20/2020

GW Cep

123

Ivan Sergey, Polyani, near Molodechno

200mm Newton(HEQ-5)+Canon 350D

200mm Newton(HEQ-5)+Canon 350D

----- EBFit result: -----
Tmin = 2459112.36816
Error (1 sigma): +0.00030/-0.00030 (Bootstrapping), +0.00028/-0.00021 (Prayer bead), +0.00006/-0.00006 (LSM)
Error (95% CI): +0.00054/-0.00063 (Bootstrapping), +0.00045/-0.00026 (Prayer bead)
LSM: chi^2 = 857.7, n_freedom = 37

. . .

New observation 1/9/2020

GW Cep

123

Ladislav Šmelcer, Hvězdárna Valašské Meziříčí

Celestron SCT 280/1765 + MII G2-4000

Celestron SCT 280/1765 + MII G2-4000
předpověď sekundárního minima JDhel=2458855.3398 - 20h09m UT (Mo=51799.64381 per.= 0.31882946 dne) - minimum nastalo o 1h12m později

. . .

New observation 1/9/2020

GW Cep

123

Ladislav Šmelcer, Hvězdárna Valašské Meziříčí

Celestron SCT 280/1765 + MII G2-4000

Celestron SCT 280/1765 + MII G2-4000
primární minimum JDhel= 2458855.23109 - 17h33m UT

. . .

New observation 1/9/2020

GW Cep

123

Ladislav Šmelcer, Hvězdárna Valašské Meziříčí

Celestron SCT 280/1765 + MII G2-4000

Celestron SCT 280/1765 + MII G2-4000
předpověď primárního minima JDhel=24582458855.4992 - 23h58m UT (Mo=51799.4844 per.= 0.31882946 dne) - minimum nastalo o 1h15m později

. . .

New minimum 1/9/2020

GW Cep

123

Ladislav Šmelcer, Hvězdárna Valašské Meziříčí

Celestron SCT 280/1765 + MII G2-4000

Celestron SCT 280/1765 + MII G2-4000

----- EBFit result: -----
Tmin = 2458855.54740
Error (1 sigma): +0.00007/-0.00007 (Bootstrapping), +0.00001/-0.00002 (Prayer bead), +0.00003/-0.00003 (LSM)
Error (95% CI): +0.00013/-0.00013 (Bootstrapping), +0.00002/-0.00003 (Prayer bead)
LSM: chi^2 = 800.3, n_freedom = 187

. . .

New minimum 1/9/2020

GW Cep

123

Ladislav Šmelcer, Hvězdárna Valašské Meziříčí

Celestron SCT 280/1765 + MII G2-4000

Celestron SCT 280/1765 + MII G2-4000

----- EBFit result: -----
Tmin = 2458855.22881
Error (1 sigma): +0.00007/-0.00006 (Bootstrapping), +0.00005/-0.00004 (Prayer bead), +0.00002/-0.00002 (LSM)
Error (95% CI): +0.00013/-0.00013 (Bootstrapping), +0.00007/-0.00008 (Prayer bead)
LSM: chi^2 = 1227.4, n_freedom = 135

. . .

New minimum 1/9/2020

GW Cep

123

Ladislav Šmelcer, Hvězdárna Valašské Meziříčí

Celestron SCT 280/1765 + MII G2-4000

Celestron SCT 280/1765 + MII G2-4000

----- EBFit result: -----
Tmin = 2458855.38761
Error (1 sigma): +0.00019/-0.00022 (Bootstrapping), +0.00038/-0.00031 (Prayer bead), +0.00008/-0.00008 (LSM)
Error (95% CI): +0.00041/-0.00042 (Bootstrapping), +0.00053/-0.00054 (Prayer bead)
LSM: chi^2 = 682.8, n_freedom = 135

. . .

New observation 10/5/2019

GW Cep

123

Červinka Ladislav, Dolní Bousov

NWT 200/1000 , Atik 320E mono

. . .

New minimum 9/3/2019

GW Cep

123

Filip Walter, Hvězdárna Valašské Meziříčí, Czech Republic

Celestron SCT 280/1765 + MII G2-4000

Celestron SCT 280/1765 + MII G2-4000
60R, -20°C, řídká vysoká oblačnost, tvorba mlhy, bez Měsíce

----- EBFit result: -----
Tmin = 2458723.55322
Error (1 sigma): +0.00006/-0.00006 (Bootstrapping), +0.00005/-0.00003 (Prayer bead), +0.00003/-0.00003 (LSM)
Error (95% CI): +0.00013/-0.00012 (Bootstrapping), +0.00008/-0.00011 (Prayer bead)
LSM: chi^2 = 301.1, n_freedom = 68

. . .

New observation 9/3/2019

GW Cep

123

Filip Walter, Hvězdárna Valašské Meziříčí, Czech Republic

Celestron SCT 280/1765 + MII G2-4000

Celestron SCT 280/1765 + MII G2-4000
60R, -20°C, řídká vysoká oblačnost, tvorba mlhy, bez Měsíce

. . .

New observation 9/6/2018

GW Cep

123

Pavol A. Dubovsky, AO Kolonica

Ziga CDK20

Ziga CDK20
#Observatory>Kolonica
#Observer>DPV
#Telescope>Ziga
#Instrument>MII G4-16000
#Filter>V
#Exposure>60.0
#Target>GW Cep
#Position>01:45:58.60;+80:04:55.3
#MainComp>01:47:25.60;+80:07:29.1;B=12.302;V=11.487;R=11.040;I=10.621
#Source>APASS
#Time system>JD geocentric
#Magnitude system>DIF
#Reduction process>Ensemble photometry with CoLiTecVS and MCV
#Comment>fullframe

----- EBFit result: -----
TminGJD = 2458361.35979
Error (1 sigma): +0.00010/-0.00011 (Bootstrapping), +0.00009/-0.00007 (Prayer bead), +0.00003/-0.00003 (LSM)
Error (95% CI): +0.00021/-0.00021 (Bootstrapping), +0.00018/-0.00017 (Prayer bead)
LSM: chi^2 = 776.2, n_freedom = 36

. . .

New observation 9/6/2018

GW Cep

123

Pavol A. Dubovsky, AO Kolonica

Ziga CDK20

Ziga CDK20
#Observatory>Kolonica
#Observer>DPV
#Telescope>Ziga
#Instrument>MII G4-16000
#Filter>I
#Exposure>60.0
#Target>GW Cep
#Position>01:45:58.60;+80:04:55.3
#MainComp>01:47:25.60;+80:07:29.1;B=12.302;V=11.487;R=11.040;I=10.621
#Source>APASS
#Time system>JD geocentric
#Magnitude system>DIF
#Reduction process>Ensemble photometry with CoLiTecVS and MCV
#Comment>fullframe

----- EBFit result: -----
TminGJD = 2458361.35978
Error (1 sigma): +0.00009/-0.00010 (Bootstrapping), +0.00008/-0.00007 (Prayer bead), +0.00003/-0.00003 (LSM)
Error (95% CI): +0.00021/-0.00019 (Bootstrapping), +0.00014/-0.00016 (Prayer bead)
LSM: chi^2 = 390.1, n_freedom = 33

. . .

New minimum 8/14/2018

GW Cep

123

Vrašťák M, Klenovec - Tepličné

NWT 150/750+MII G2-1600

NWT 150/750+MII G2-1600
----- EBFit result: -----
Tmin = 2458341.43352
Error (1 sigma): +0.00021/-0.00016 (Bootstrapping), +0.00037/-0.00026 (Prayer bead), +0.00007/-0.00007 (LSM)
Error (95% CI): +0.00048/-0.00033 (Bootstrapping), +0.00056/-0.00048 (Prayer bead)
LSM: chi^2 = 355.8, n_freedom = 60

. . .

New observation 4/17/2018

GW Cep

123

Ladislav Šmelcer, Hvězdárna Valašské Meziříčí

Celestron SCT 355/2460 + MII G2-1600

Celestron SCT 355/2460 + MII G2-1600
sekundární minimum JDhel=2458222.50681 - 0h10m UT

. . .

New observation 4/17/2018

GW Cep

123

Ladislav Šmelcer, Hvězdárna Valašské Meziříčí

Celestron SCT 355/2460 + MII G2-1600

Celestron SCT 355/2460 + MII G2-1600
předpověď primárního minima JDhel=2458222.3039 - 19h17m UT (Mo=51799.4844 per.=0.31882946 dne) - minimum nastalo o 1h04min později

. . .

New minimum 4/17/2018

GW Cep

123

Ladislav Šmelcer, Hvězdárna Valašské Meziříčí

Celestron SCT 355/2460 + MII G2-1600

Celestron SCT 355/2460 + MII G2-1600

----- EBFit result: -----
Tmin = 2458222.50872
Error (1 sigma): +0.00024/-0.00024 (Bootstrapping), +0.00014/-0.00012 (Prayer bead), +0.00018/-0.00018 (LSM)
Error (95% CI): +0.00072/-0.00055 (Bootstrapping), +0.00039/-0.00025 (Prayer bead)
LSM: chi^2 = 37.3, n_freedom = 16

. . .

New minimum 4/17/2018

GW Cep

123

Ladislav Šmelcer, Hvězdárna Valašské Meziříčí

Celestron SCT 355/2460 + MII G2-1600

Celestron SCT 355/2460 + MII G2-1600

----- EBFit result: -----
Tmin = 2458222.35010
Error (1 sigma): +0.00010/-0.00009 (Bootstrapping), +0.00005/-0.00006 (Prayer bead), +0.00003/-0.00003 (LSM)
Error (95% CI): +0.00017/-0.00018 (Bootstrapping), +0.00006/-0.00010 (Prayer bead)
LSM: chi^2 = 901.5, n_freedom = 93

. . .

New observation 4/12/2018

GW Cep

123

Ladislav Šmelcer, Hvězdárna Valašské Meziříčí

Celestron SCT 355/2460 + MII G2-1600

Celestron SCT 355/2460 + MII G2-1600
předpověď primárního minima JDhel=2458220.3909 - 21h22m UT (Mo=51799.4844 per.= 0.31882946 dne) - minimum nastalo o 1h06m později

. . .

New observation 4/12/2018

GW Cep

123

Ladislav Šmelcer, Hvězdárna Valašské Meziříčí

Celestron SCT 355/2460 + MII G2-1600

Celestron SCT 355/2460 + MII G2-1600
předpověď primárního minima JDhel=2458220.3909 - 21h22m UT (Mo=51799.4844 per.= 0.31882946 dne) - minimum nastalo o 1h06m později

. . .

New minimum 4/12/2018

GW Cep

123

Ladislav Šmelcer, Hvězdárna Valašské Meziříčí

Celestron SCT 355/2460 + MII G2-1600

Celestron SCT 355/2460 + MII G2-1600

----- EBFit result: -----
Tmin = 2458220.43777
Error (1 sigma): +0.00012/-0.00011 (Bootstrapping), +0.00002/-0.00001 (Prayer bead), +0.00006/-0.00006 (LSM)
Error (95% CI): +0.00023/-0.00021 (Bootstrapping), +0.00004/-0.00003 (Prayer bead)
LSM: chi^2 = 213.4, n_freedom = 47

. . .

New minimum 4/12/2018

GW Cep

123

Ladislav Šmelcer, Hvězdárna Valašské Meziříčí

Celestron SCT 355/2460 + MII G2-1600

Celestron SCT 355/2460 + MII G2-1600

----- EBFit result: -----
Tmin = 2458220.43768
Error (1 sigma): +0.00011/-0.00013 (Bootstrapping), +0.00002/-0.00002 (Prayer bead), +0.00008/-0.00008 (LSM)
Error (95% CI): +0.00025/-0.00026 (Bootstrapping), +0.00003/-0.00004 (Prayer bead)
LSM: chi^2 = 116.4, n_freedom = 48

. . .

New observation 7/30/2017

GW Cep

123

Matúš Kamenec, Kolonica

SkyWatcher Newton 150/750

SkyWatcher Newton 150/750
SkyWatcher Newton 150/750
CCD+C; exp 30s
Newton + Canon + HER
Differential photometry with C-Munipack
V-C magnitudes

----- EBFit result: -----
TminGJD = 2457964.41557
Error (1 sigma): +0.00019/-0.00020 (Bootstrapping), +0.00011/-0.00011 (Prayer bead), +0.00004/-0.00004 (LSM)
Error (95% CI): +0.00036/-0.00040 (Bootstrapping), +0.00021/-0.00013 (Prayer bead)
LSM: chi^2 = 1297.4, n_freedom = 62

. . .

New observation 4/12/2017

GW Cep

123

Ladislav Šmelcer, Hvězdárna Valašské Meziříčí

Celestron SCT 355/2460 + MII G2-1600

Celestron SCT 355/2460 + MII G2-1600
předpověď primárního minima JDhel=2457853.4199 - 22h04m UT (Mo=51799.4844 per.= 0.31882946 dne) - minimum nastalo o 57 min. později

. . .

New minimum 4/12/2017

GW Cep

123

Ladislav Šmelcer, Hvězdárna Valašské Meziříčí

Celestron SCT 355/2460 + MII G2-1600

Celestron SCT 355/2460 + MII G2-1600

----- EBFit result: -----
Tmin = 2457853.46109
Error (1 sigma): +0.00009/-0.00011 (Bootstrapping), +0.00019/-0.00014 (Prayer bead), +0.00003/-0.00003 (LSM)
Error (95% CI): +0.00019/-0.00020 (Bootstrapping), +0.00034/-0.00022 (Prayer bead)
LSM: chi^2 = 2373.5, n_freedom = 127

. . .

New observation 2/1/2017

GW Cep

123

Pavol A. Dubovsky, AO Kolonica

Celestron 11

Celestron 11
CCD+V; exp 60s
C11 280/2800 + MII G2-1600 + DPV
Images calibrated with OLDAS; Ensamble photometry with C-Munipack and MCV, MainComp = TYC4502-00724-1, V=11.74, B-V=0.50 (Tycho-2)
JD heliocentric, V-C magnitudes

----- EBFit result: -----
TminHJD = 2457784.27284
Error (1 sigma): +0.00006/-0.00007 (Bootstrapping), +0.00008/-0.00012 (Prayer bead), +0.00003/-0.00003 (LSM)
Error (95% CI): +0.00011/-0.00013 (Bootstrapping), +0.00010/-0.00015 (Prayer bead)
LSM: chi^2 = 494.4, n_freedom = 83

. . .

New observation 1/4/2016

GW Cep

123

Pavol A. Dubovsky, AO Kolonica

Ziga CDK20

Ziga CDK20
CCD+V; exp 30s; Ziga binning 2x2
Ziga 508/3454 + MII G4-16000 + DPV
Ensamble photometry with C-Munipack and MCV, MainComp = TYC 4502-724-1, B=12.302 V=11.487 R=11.057 I=10.629 (APASS)
JD geocentric, V-C magnitudes

----- EBFit result: -----
TminGJD = 2457250.54998
Error (1 sigma): +0.00013/-0.00012 (Bootstrapping), +0.00004/-0.00004 (Prayer bead), +0.00004/-0.00004 (LSM)
Error (95% CI): +0.00025/-0.00026 (Bootstrapping), +0.00005/-0.00006 (Prayer bead)
LSM: chi^2 = 357.9, n_freedom = 23

----- EBFit result: -----
TminGJD = 2457250.39102
Error (1 sigma): +0.00016/-0.00015 (Bootstrapping), +0.00010/-0.00010 (Prayer bead), +0.00004/-0.00004 (LSM)
Error (95% CI): +0.00032/-0.00029 (Bootstrapping), +0.00014/-0.00016 (Prayer bead)
LSM: chi^2 = 431.1, n_freedom = 30

. . .

New observation 1/4/2016

GW Cep

123

Pavol A. Dubovsky, AO Kolonica

Ziga CDK20

Ziga CDK20
CCD+R; exp 30s; Ziga binning 2x2
Ziga 508/3454 + MII G4-16000 + DPV
Ensamble photometry with C-Munipack and MCV, MainComp = TYC 4502-724-1, B=12.302 V=11.487 R=11.057 I=10.629 (APASS)
JD geocentric, V-C magnitudes

----- EBFit result: -----
TminGJD = 2457250.54997
Error (1 sigma): +0.00011/-0.00011 (Bootstrapping), +0.00003/-0.00004 (Prayer bead), +0.00004/-0.00004 (LSM)
Error (95% CI): +0.00023/-0.00021 (Bootstrapping), +0.00008/-0.00005 (Prayer bead)
LSM: chi^2 = 228.4, n_freedom = 22

----- EBFit result: -----
TminGJD = 2457250.39087
Error (1 sigma): +0.00011/-0.00011 (Bootstrapping), +0.00005/-0.00003 (Prayer bead), +0.00004/-0.00004 (LSM)
Error (95% CI): +0.00023/-0.00022 (Bootstrapping), +0.00006/-0.00006 (Prayer bead)
LSM: chi^2 = 253.2, n_freedom = 28

. . .

New observation 1/4/2016

GW Cep

123

Pavol A. Dubovsky, AO Kolonica

Ziga CDK20

Ziga CDK20
CCD+I; exp 40s; Ziga binning 2x2
Ziga 508/3454 + MII G4-16000 + DPV
Ensamble photometry with C-Munipack and MCV, MainComp = TYC 4502-724-1, B=12.302 V=11.487 R=11.057 I=10.629 (APASS)
JD geocentric, V-C magnitudes

----- EBFit result: -----
TminGJD = 2457250.54979
Error (1 sigma): +0.00016/-0.00017 (Bootstrapping), +0.00014/-0.00013 (Prayer bead), +0.00004/-0.00004 (LSM)
Error (95% CI): +0.00033/-0.00032 (Bootstrapping), +0.00020/-0.00018 (Prayer bead)
LSM: chi^2 = 596.8, n_freedom = 30

----- EBFit result: -----
TminGJD = 2457250.39088
Error (1 sigma): +0.00017/-0.00016 (Bootstrapping), +0.00013/-0.00017 (Prayer bead), +0.00004/-0.00004 (LSM)
Error (95% CI): +0.00036/-0.00032 (Bootstrapping), +0.00020/-0.00028 (Prayer bead)
LSM: chi^2 = 560.2, n_freedom = 38

. . .

New observation 1/4/2016

GW Cep

123

Pavol A. Dubovsky, AO Kolonica

Ziga CDK20

Ziga CDK20
CCD+I; exp 40s; Ziga binning 2x2; secondary minimum
Ziga 508/3454 + MII G4-16000 + DPV
Ensamble photometry with C-Munipack and MCV, MainComp = TYC 4502-724-1, B=12.302 V=11.487 R=11.057 I=10.629 (APASS)
JD geocentric, V-C magnitudes

----- EBFit result: -----
TminGJD = 2457249.43416
Error (1 sigma): +0.00014/-0.00013 (Bootstrapping), +0.00005/-0.00008 (Prayer bead), +0.00005/-0.00005 (LSM)
Error (95% CI): +0.00030/-0.00026 (Bootstrapping), +0.00008/-0.00011 (Prayer bead)
LSM: chi^2 = 293.4, n_freedom = 30

. . .

New observation 1/4/2016

GW Cep

123

Pavol A. Dubovsky, AO Kolonica

Ziga CDK20

Ziga CDK20
CCD+B; exp 40s; Ziga binning 2x2
Ziga 508/3454 + MII G4-16000 + DPV
Ensamble photometry with C-Munipack and MCV, MainComp = TYC 4502-724-1, B=12.302 V=11.487 R=11.057 I=10.629 (APASS)
JD geocentric, V-C magnitudes

----- EBFit result: -----
TminGJD = 2457250.55012
Error (1 sigma): +0.00010/-0.00012 (Bootstrapping), +0.00006/-0.00005 (Prayer bead), +0.00005/-0.00005 (LSM)
Error (95% CI): +0.00025/-0.00028 (Bootstrapping), +0.00014/-0.00009 (Prayer bead)
LSM: chi^2 = 213.6, n_freedom = 24

----- EBFit result: -----
TminGJD = 2457250.39112
Error (1 sigma): +0.00015/-0.00014 (Bootstrapping), +0.00002/-0.00002 (Prayer bead), +0.00005/-0.00005 (LSM)
Error (95% CI): +0.00030/-0.00026 (Bootstrapping), +0.00007/-0.00007 (Prayer bead)
LSM: chi^2 = 224.5, n_freedom = 28

. . .

New observation 1/4/2016

GW Cep

123

Pavol A. Dubovsky, AO Kolonica

VNT RL 1000/9000

VNT RL 1000/9000
CCD+V; exp 30s; Ziga binning 2x2; secondary minimum
Ziga 508/3454 + MII G4-16000 + DPV
Ensamble photometry with C-Munipack and MCV, MainComp = TYC 4502-724-1, B=12.302 V=11.487 R=11.057 I=10.629 (APASS)
JD geocentric, V-C magnitudes

----- EBFit result: -----
TminGJD = 2457249.43445
Error (1 sigma): +0.00015/-0.00013 (Bootstrapping), +0.00007/-0.00007 (Prayer bead), +0.00005/-0.00005 (LSM)
Error (95% CI): +0.00031/-0.00027 (Bootstrapping), +0.00010/-0.00012 (Prayer bead)
LSM: chi^2 = 245.6, n_freedom = 28

. . .

New observation 1/4/2016

GW Cep

123

Pavol A. Dubovsky, AO Kolonica

Ziga CDK20

Ziga CDK20
CCD+R; exp 30s; Ziga binning 2x2; secondary minimum
Ziga 508/3454 + MII G4-16000 + DPV
Ensamble photometry with C-Munipack and MCV, MainComp = TYC 4502-724-1, B=12.302 V=11.487 R=11.057 I=10.629 (APASS)
JD geocentric, V-C magnitudes

----- EBFit result: -----
TminGJD = 2457249.43436
Error (1 sigma): +0.00012/-0.00013 (Bootstrapping), +0.00003/-0.00003 (Prayer bead), +0.00004/-0.00004 (LSM)
Error (95% CI): +0.00025/-0.00024 (Bootstrapping), +0.00006/-0.00004 (Prayer bead)
LSM: chi^2 = 270.4, n_freedom = 28

. . .

New observation 1/4/2016

GW Cep

123

Pavol A. Dubovsky, AO Kolonica

Ziga CDK20

Ziga CDK20
CCD+B; exp 40s; Ziga binning 2x2; secondary minimum
Ziga 508/3454 + MII G4-16000 + DPV
Ensamble photometry with C-Munipack and MCV, MainComp = TYC 4502-724-1, B=12.302 V=11.487 R=11.057 I=10.629 (APASS)
JD geocentric, V-C magnitudes

----- EBFit result: -----
TminGJD = 2457249.43442
Error (1 sigma): +0.00014/-0.00014 (Bootstrapping), +0.00002/-0.00002 (Prayer bead), +0.00006/-0.00006 (LSM)
Error (95% CI): +0.00028/-0.00028 (Bootstrapping), +0.00008/-0.00004 (Prayer bead)
LSM: chi^2 = 171.5, n_freedom = 31

. . .

New observation 1/4/2016

GW Cep

123

Pavol A. Dubovsky, AO Kolonica

Ziga CDK20

Ziga CDK20
CCD+V; exp 30s; Ziga binning 2x2; secondary minimum
Ziga 508/3454 + MII G4-16000 + DPV
Ensamble photometry with C-Munipack and MCV, MainComp = TYC 4502-724-1, B=12.302 V=11.487 R=11.057 I=10.629 (APASS)
JD geocentric, V-C magnitudes

----- EBFit result: -----
TminGJD = 2457248.47802
Error (1 sigma): +0.00015/-0.00015 (Bootstrapping), +0.00006/-0.00005 (Prayer bead), +0.00005/-0.00005 (LSM)
Error (95% CI): +0.00030/-0.00028 (Bootstrapping), +0.00007/-0.00009 (Prayer bead)
LSM: chi^2 = 283.1, n_freedom = 31

. . .

New observation 1/4/2016

GW Cep

123

Pavol A. Dubovsky, AO Kolonica

Ziga CDK20

Ziga CDK20
CCD+R; exp 30s; Ziga binning 2x2; secondary minimum
Ziga 508/3454 + MII G4-16000 + DPV
Ensamble photometry with C-Munipack and MCV, MainComp = TYC 4502-724-1, B=12.302 V=11.487 R=11.057 I=10.629 (APASS)
JD geocentric, V-C magnitudes

----- EBFit result: -----
TminGJD = 2457248.47790
Error (1 sigma): +0.00014/-0.00014 (Bootstrapping), +0.00003/-0.00002 (Prayer bead), +0.00004/-0.00004 (LSM)
Error (95% CI): +0.00030/-0.00028 (Bootstrapping), +0.00006/-0.00007 (Prayer bead)
LSM: chi^2 = 422.3, n_freedom = 30

. . .

New observation 1/4/2016

GW Cep

123

Pavol A. Dubovsky, AO Kolonica

Ziga CDK20

Ziga CDK20
CCD+I; exp 40s; Ziga binning 2x2; secondary minimum
Ziga 508/3454 + MII G4-16000 + DPV
Ensamble photometry with C-Munipack and MCV, MainComp = TYC 4502-724-1, B=12.302 V=11.487 R=11.057 I=10.629 (APASS)
JD geocentric, V-C magnitudes

----- EBFit result: -----
TminGJD = 2457248.47787
Error (1 sigma): +0.00013/-0.00011 (Bootstrapping), +0.00003/-0.00003 (Prayer bead), +0.00005/-0.00005 (LSM)
Error (95% CI): +0.00027/-0.00021 (Bootstrapping), +0.00003/-0.00004 (Prayer bead)
LSM: chi^2 = 224.1, n_freedom = 30

. . .

New observation 1/4/2016

GW Cep

123

Pavol A. Dubovsky, AO Kolonica

Ziga CDK20

Ziga CDK20
CCD+B; exp 40s; Ziga binning 2x2; secondary minimum
Ziga 508/3454 + MII G4-16000 + DPV
Ensamble photometry with C-Munipack and MCV, MainComp = TYC 4502-724-1, B=12.302 V=11.487 R=11.057 I=10.629 (APASS)
JD geocentric, V-C magnitudes

----- EBFit result: -----
TminGJD = 2457248.47823
Error (1 sigma): +0.00016/-0.00016 (Bootstrapping), +0.00002/-0.00002 (Prayer bead), +0.00006/-0.00006 (LSM)
Error (95% CI): +0.00033/-0.00032 (Bootstrapping), +0.00004/-0.00006 (Prayer bead)
LSM: chi^2 = 204.7, n_freedom = 28

. . .

New observation 1/4/2016

GW Cep

123

Pavol A. Dubovsky, AO Kolonica

Ziga CDK20

. . .

New observation 1/4/2016

GW Cep

123

Pavol A. Dubovsky, AO Kolonica

Ziga CDK20

. . .

New observation 1/4/2016

GW Cep

123

Pavol A. Dubovsky, AO Kolonica

Ziga CDK20

. . .

New observation 1/4/2016

GW Cep

123

Pavol A. Dubovsky, AO Kolonica

Ziga CDK20

. . .

New observation 12/2/2015

GW Cep

123

Ladislav Šmelcer, Hvězdárna Valašské Meziříčí

Celestron SCT 280/1765 + MII G2-4000

Celestron SCT 280/1765 + MII G2-4000
předpověď primárního minima JDhel=2457351.5806 - 01h56m UT (Mo=51799.4844 per.= 0.31882946 dne) - minimum nastalo o 54 minut později

. . .

New observation 12/2/2015

GW Cep

123

Ladislav Šmelcer, Hvězdárna Valašské Meziříčí

Celestron SCT 280/1765 + MII G2-4000

Celestron SCT 280/1765 + MII G2-4000
předpověď primárního minima JDhel=2457351.5806 - 01h56m UT (Mo=51799.4844 per.= 0.31882946 dne) - minimum nastalo o 54 minut později

. . .

New observation 12/2/2015

GW Cep

123

Ladislav Šmelcer, Hvězdárna Valašské Meziříčí

Celestron SCT 280/1765 + MII G2-4000

Celestron SCT 280/1765 + MII G2-4000
předpověď sekundárního minima JDhel=2457351.4212 - 22h06m UT (Mo=51799.64381 per.= 0.31882946 dne) - minimum nastalo o 56 minut později

. . .

New observation 12/2/2015

GW Cep

123

Ladislav Šmelcer, Hvězdárna Valašské Meziříčí

Celestron SCT 280/1765 + MII G2-4000

Celestron SCT 280/1765 + MII G2-4000
předpověď sekundárního minima JDhel=2457351.4212 - 22h06m UT (Mo=51799.64381 per.= 0.31882946 dne) - minimum nastalo o 56 minut později

. . .

New observation 12/2/2015

GW Cep

123

Ladislav Šmelcer, Hvězdárna Valašské Meziříčí

Celestron SCT 280/1765 + MII G2-4000

Celestron SCT 280/1765 + MII G2-4000
předpověď primárního minima JDhel=2457351.2618 - 18h17m UT (Mo=51799.4844 per.= 0.31882946 dne) - minimum nastalo o 54 minut později

. . .

New observation 12/2/2015

GW Cep

123

Ladislav Šmelcer, Hvězdárna Valašské Meziříčí

Celestron SCT 280/1765 + MII G2-4000

Celestron SCT 280/1765 + MII G2-4000
předpověď primárního minima JDhel=2457351.2618 - 18h17m UT (Mo=51799.4844 per.= 0.31882946 dne) - minimum nastalo o 54 minut později

. . .

New minimum 12/2/2015

GW Cep

123

Ladislav Šmelcer, Hvězdárna Valašské Meziříčí

Celestron SCT 280/1765 + MII G2-4000

Celestron SCT 280/1765 + MII G2-4000

----- EBFit result: -----
Tmin = 2457351.61579
Error (1 sigma): +0.00008/-0.00009 (Bootstrapping), +0.00002/-0.00002 (Prayer bead), +0.00004/-0.00004 (LSM)
Error (95% CI): +0.00015/-0.00016 (Bootstrapping), +0.00005/-0.00007 (Prayer bead)
LSM: chi^2 = 186.7, n_freedom = 49

. . .

New minimum 12/2/2015

GW Cep

123

Ladislav Šmelcer, Hvězdárna Valašské Meziříčí

Celestron SCT 280/1765 + MII G2-4000

Celestron SCT 280/1765 + MII G2-4000

----- EBFit result: -----
Tmin = 2457351.61569
Error (1 sigma): +0.00008/-0.00008 (Bootstrapping), +0.00003/-0.00003 (Prayer bead), +0.00004/-0.00004 (LSM)
Error (95% CI): +0.00015/-0.00015 (Bootstrapping), +0.00005/-0.00006 (Prayer bead)
LSM: chi^2 = 201.4, n_freedom = 58

. . .

New minimum 12/2/2015

GW Cep

123

Ladislav Šmelcer, Hvězdárna Valašské Meziříčí

Celestron SCT 280/1765 + MII G2-4000

Celestron SCT 280/1765 + MII G2-4000

----- EBFit result: -----
Tmin = 2457351.45741
Error (1 sigma): +0.00009/-0.00009 (Bootstrapping), +0.00008/-0.00008 (Prayer bead), +0.00005/-0.00005 (LSM)
Error (95% CI): +0.00017/-0.00018 (Bootstrapping), +0.00013/-0.00013 (Prayer bead)
LSM: chi^2 = 234.2, n_freedom = 56

. . .

New minimum 12/2/2015

GW Cep

123

Ladislav Šmelcer, Hvězdárna Valašské Meziříčí

Celestron SCT 280/1765 + MII G2-4000

Celestron SCT 280/1765 + MII G2-4000
----- EBFit result: -----
Tmin = 2457351.45735
Error (1 sigma): +0.00009/-0.00010 (Bootstrapping), +0.00002/-0.00003 (Prayer bead), +0.00005/-0.00005 (LSM)
Error (95% CI): +0.00018/-0.00018 (Bootstrapping), +0.00009/-0.00009 (Prayer bead)
LSM: chi^2 = 161.8, n_freedom = 46

. . .

New minimum 12/2/2015

GW Cep

123

Ladislav Šmelcer, Hvězdárna Valašské Meziříčí

Celestron SCT 280/1765 + MII G2-4000

Celestron SCT 280/1765 + MII G2-4000
----- EBFit result: -----
Tmin = 2457351.29702
Error (1 sigma): +0.00007/-0.00007 (Bootstrapping), +0.00004/-0.00004 (Prayer bead), +0.00004/-0.00004 (LSM)
Error (95% CI): +0.00014/-0.00014 (Bootstrapping), +0.00008/-0.00007 (Prayer bead)
LSM: chi^2 = 221.0, n_freedom = 51

. . .

New minimum 12/2/2015

GW Cep

123

Ladislav Šmelcer, Hvězdárna Valašské Meziříčí

Celestron SCT 280/1765 + MII G2-4000

Celestron SCT 280/1765 + MII G2-4000

----- EBFit result: -----
Tmin = 2457351.29659
Error (1 sigma): +0.00009/-0.00010 (Bootstrapping), +0.00003/-0.00004 (Prayer bead), +0.00004/-0.00004 (LSM)
Error (95% CI): +0.00019/-0.00020 (Bootstrapping), +0.00009/-0.00007 (Prayer bead)
LSM: chi^2 = 316.9, n_freedom = 67

. . .

New observation 11/9/2015

GW Cep

123

Ladislav Šmelcer, Hvězdárna Valašské Meziříčí

Celestron SCT 280/1765 + MII G2-4000

Celestron SCT 280/1765 + MII G2-4000
předpověď primárního minima JDhel=2457332.4508 - 22h49m UT (Mo=51799.4844 per.= 0.31882946 dne) - minimum nastalo o 54 minut později

. . .

New observation 11/9/2015

GW Cep

123

Ladislav Šmelcer, Hvězdárna Valašské Meziříčí

Celestron SCT 280/1765 + MII G2-4000

Celestron SCT 280/1765 + MII G2-4000
předpověď primárního minima JDhel=2457332.4508 - 22h49m UT (Mo=51799.4844 per.= 0.31882946 dne) - minimum nastalo o 54 minut později

. . .

New minimum 11/9/2015

GW Cep

123

Ladislav Šmelcer, Hvězdárna Valašské Meziříčí

Celestron SCT 280/1765 + MII G2-4000

Celestron SCT 280/1765 + MII G2-4000

----- EBFit result: -----
Tmin = 2457332.48567
Error (1 sigma): +0.00009/-0.00009 (Bootstrapping), +0.00002/-0.00003 (Prayer bead), +0.00002/-0.00002 (LSM)
Error (95% CI): +0.00019/-0.00019 (Bootstrapping), +0.00004/-0.00004 (Prayer bead)
LSM: chi^2 = 1700.5, n_freedom = 82

. . .

New minimum 11/9/2015

GW Cep

123

Ladislav Šmelcer, Hvězdárna Valašské Meziříčí

Celestron SCT 280/1765 + MII G2-4000

Celestron SCT 280/1765 + MII G2-4000

----- EBFit result: -----
Tmin = 2457332.48577
Error (1 sigma): +0.00010/-0.00009 (Bootstrapping), +0.00001/-0.00002 (Prayer bead), +0.00004/-0.00004 (LSM)
Error (95% CI): +0.00017/-0.00017 (Bootstrapping), +0.00003/-0.00003 (Prayer bead)
LSM: chi^2 = 503.2, n_freedom = 85

. . .

New observation 10/22/2015

GW Cep

123

Pavol A. Dubovsky, AO Kolonica

Celestron 11

Celestron 11
CCD+V; exp 60s
C11 280/2800 + MII G2-1600 + DPV
Ensamble photometry with C-Munipack and MCV, MainComp = TYC4502-00724-1, V=11.74, B-V=0.50 (Tycho-2)
JD heliocentric, V-C magnitudes

----- EBFit result: -----
TminHJD = 2457244.49120
Error (1 sigma): +0.00007/-0.00007 (Bootstrapping), +0.00001/-0.00002 (Prayer bead), +0.00004/-0.00004 (LSM)
Error (95% CI): +0.00013/-0.00014 (Bootstrapping), +0.00002/-0.00003 (Prayer bead)
LSM: chi^2 = 151.4, n_freedom = 37

. . .

New observation 10/22/2015

GW Cep

123

Pavol A. Dubovsky, AO Kolonica

Celestron 11

Celestron 11
CCD+I; exp 60s
C11 280/2800 + MII G2-1600 + DPV
Ensamble photometry with C-Munipack and MCV, MainComp = TYC4502-00724-1, V=11.74, B-V=0.50 (Tycho-2)
JD heliocentric, V-C magnitudes

----- EBFit result: -----
TminHJD = 2457244.49104
Error (1 sigma): +0.00008/-0.00007 (Bootstrapping), +0.00002/-0.00002 (Prayer bead), +0.00004/-0.00004 (LSM)
Error (95% CI): +0.00016/-0.00014 (Bootstrapping), +0.00003/-0.00003 (Prayer bead)
LSM: chi^2 = 147.7, n_freedom = 37

. . .

New observation 4/14/2015

GW Cep

123

Ladislav Šmelcer, Hvězdárna Valašské Meziříčí

Celestron 280/1765 + CCD G2 4000

Celestron 280/1765 + CCD G2 4000
předpověď primárního minima JDhel=2457125.5305 - 04h43m UT (Mo=51799.4844 per.=0.31882946 dne) - minimum nastalo o 53 minut později

. . .

New observation 4/14/2015

GW Cep

123

Ladislav Šmelcer, Hvězdárna Valašské Meziříčí

Celestron 280/1765 + CCD G2 4000

Celestron 280/1765 + CCD G2 4000
předpověď primárního minima JDhel=2457125.5305 - 04h43m UT (Mo=51799.4844 per.=0.31882946 dne) - minimum nastalo o 53 minut později

. . .

New observation 4/14/2015

GW Cep

123

Ladislav Šmelcer, Hvězdárna Valašské Meziříčí

Celestron 280/1765 + CCD G2 4000

Celestron 280/1765 + CCD G2 4000
předpověď sekundárního minima JDhel=2457125.3711 - 20h54m UT (Mo=51799.64381 per.=0.31882946 dne) - minimum nastalo o 54 minut později

. . .

New observation 4/14/2015

GW Cep

123

Ladislav Šmelcer, Hvězdárna Valašské Meziříčí

Celestron 280/1765 + CCD G2 4000

Celestron 280/1765 + CCD G2 4000
předpověď sekundárního minima JDhel=2457125.3711 - 20h54m UT (Mo=51799.64381 per.=0.31882946 dne) - minimum nastalo o 54 minut později

. . .