Recent

New minimum 10/1/2026

BS Cas

Stanislav Holý, Ratměřice, 9/30/2026

GSO NWT 200/1000 + ZWO ASI 533MM

. . .

New observation 10/1/2026

BS Cas

Stanislav Holý, Ratměřice, 9/30/2026

GSO NWT 200/1000 + ZWO ASI 533MM

. . .

New minimum 9/30/2026

BS Cas

Stanislav Holý, Ratměřice, 9/29/2026

GSO NWT 200/1000 + ZWO ASI 533MM

. . .

New observation 9/30/2026

BS Cas

Stanislav Holý, Ratměřice, 9/29/2026

GSO NWT 200/1000 + ZWO ASI 533MM

. . .

New minimum 11/20/2025

BS Cas

Roman Ehrenberger, Crow Observatory Vranová, 8/10/2025

NWT 300/1200+MII G2-3200

. . .

New observation 11/20/2025

BS Cas

Roman Ehrenberger, Crow Observatory Vranová, 8/10/2025

NWT 300/1200+MII G2-3200

. . .

New minimum 11/20/2025

BS Cas

Roman Ehrenberger, Crow Observatory Vranová, 8/10/2025

NWT 300/1200+MII G2-3200

. . .

New observation 11/20/2025

BS Cas

Roman Ehrenberger, Crow Observatory Vranová, 8/10/2025

NWT 300/1200+MII G2-3200

. . .

New minimum 11/20/2025

BS Cas

Roman Ehrenberger, Crow Observatory Vranová, 8/10/2025

NWT 300/1200+MII G2-3200

. . .

New observation 11/20/2025

BS Cas

Roman Ehrenberger, Crow Observatory Vranová, 8/10/2025

NWT 300/1200+MII G2-3200

. . .

New observation 8/15/2023

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>BS Cas
#Position>
#MainComp>
#Source>
#Magnitude system>
#Time system>JD geocentric
#Reduction>Muniwin
#Comment>

----- EBFit result: -----
TminGJD = 2460171.42777
Error (1 sigma): +0.00020/-0.00018 (Bootstrapping), +0.00021/-0.00022 (Prayer bead), +0.00004/-0.00004 (LSM)
Error (95% CI): +0.00037/-0.00037 (Bootstrapping), +0.00025/-0.00032 (Prayer bead)
LSM: chi^2 = 2923.9, n_freedom = 152

. . .

New observation 8/13/2023

BS Cas

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>BS Cas
#Position>
#MainComp>
#Source>
#Magnitude system>
#Time system>JD geocentric
#Reduction>Muniwin
#Comment>

----- EBFit result: -----
TminGJD = 2460134.43200
Error (1 sigma): +0.00014/-0.00013 (Bootstrapping), +0.00008/-0.00012 (Prayer bead), +0.00005/-0.00005 (LSM)
Error (95% CI): +0.00027/-0.00026 (Bootstrapping), +0.00010/-0.00019 (Prayer bead)
LSM: chi^2 = 1257.1, n_freedom = 160

. . .

New observation 2/24/2023

BS Cas

Ehrenberger R., Crow-Observatory Vranová

NWT 150/600+MII G2-8300

. . .

New minimum 2/24/2023

BS Cas

Roman Ehrenberger, Crow-Observatory Vranová

NWT 150/600+MII G2-8300

NWT 150/600+MII G2-8300

----- EBFit result: -----
Tmin = 2459489.36805
Error (1 sigma): +0.00012/-0.00012 (Bootstrapping), +0.00010/-0.00008 (Prayer bead), +0.00005/-0.00005 (LSM)
Error (95% CI): +0.00023/-0.00024 (Bootstrapping), +0.00017/-0.00015 (Prayer bead)
LSM: chi^2 = 1503.4, n_freedom = 190

. . .

New observation 8/6/2022

BS Cas

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>VBS Cas
#Position>
#MainComp>
#Source>
#Magnitude system>
#Time system>JD geocentric
#Reduction>Muniwin
#Comment>

----- EBFit result: -----
TminGJD = 2459797.47635
Error (1 sigma): +0.00015/-0.00017 (Bootstrapping), +0.00005/-0.00006 (Prayer bead), +0.00005/-0.00005 (LSM)
Error (95% CI): +0.00030/-0.00031 (Bootstrapping), +0.00018/-0.00015 (Prayer bead)
LSM: chi^2 = 1085.9, n_freedom = 113

. . .

New observation 1/16/2022

BS Cas

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)
#Exposure>30s ISO 1600
#Target>BS Cas
#Position>
#MainComp>
#Source>
#Magnitude system>
#Time system>JD geocentric
#Reduction>
#Comment>

. . .

New observation 11/8/2021

BS Cas

Pavol A. Dubovsky, AO Kolonica

M20 RL 200/2000

M20 RL 200/2000
#Telescope>M20
#CCD>MII G2-1600
#Observer>DPV
#Filter/Exposure>V 120s;Ic 120s
#Target>BS Cas
#Position>01:21:38.57;+59:10:27.0
#MainComp>01:21:55.21;+59:13:15.9;B=11.005;V=10.538;R=10.262;I=9.980
#Source>SRO50
#Time system>JD geocentric
#Magnitude system>ABS
#Reduction process>Ensemble photometry with CoLiTecVS
#Note>

. . .

New observation 11/8/2021

BS Cas

Pavol A. Dubovsky, AO Kolonica

M20 RL 200/2000

. . .

New minimum 10/18/2019

BS Cas

Bragagnolo U., Gruppo Astrofili Salese S.M di Sala (Venezia ) ITALIA

Sky-Watcher REF 100/900 + QHY9

Sky-Watcher REF 100/900 + QHY9
----- EBFit result: -----
Tmin = 2458530.26364
Error (1 sigma): +0.00020/-0.00019 (Bootstrapping), +0.00004/-0.00004 (Prayer bead), +0.00010/-0.00010 (LSM)
Error (95% CI): +0.00037/-0.00040 (Bootstrapping), +0.00008/-0.00009 (Prayer bead)
LSM: chi^2 = 238.8, n_freedom = 71

. . .

New minimum 1/27/2019

BS Cas

Jens Jacobsen, Egeskov Observatory

EQ6, 70 mm refractor, Atik 314

EQ6, 70 mm refractor, Atik 314
----- EBFit result: -----
Tmin = 2457667.39178
Error (1 sigma): +0.00012/-0.00012 (Bootstrapping), +0.00003/-0.00003 (Prayer bead), +0.00052/-0.00052 (LSM)
Error (95% CI): +0.00024/-0.00025 (Bootstrapping), +0.00007/-0.00006 (Prayer bead)
LSM: chi^2 = 6.8, n_freedom = 103

. . .

New observation 10/27/2017

BS Cas

Pavol A. Dubovsky, AO Kolonica

Celestron 11

Celestron 11
#Telescope>C11 280/2800
#CCD>MII G2-1600
#Observer>Medulka
#Filter>V
#Exposure>60s
#Target>BS Cas
#Position>01:21:38.57;+59:10:27.0
#MainComp>01:21:55.21;+59:13:15.9;B=11.005;V=10.538;R=10.262;I=9.980
#Source>SRO50
#Time system>JD heliocentric
#Magnitude system>V-C
#Reduction process>Ensemble photometry with Muniwin and MCV
#Note>

----- EBFit result: -----
TminGJD = 2458036.50351
Error (1 sigma): +0.00016/-0.00016 (Bootstrapping), +0.00006/-0.00007 (Prayer bead), +0.00012/-0.00012 (LSM)
Error (95% CI): +0.00030/-0.00029 (Bootstrapping), +0.00011/-0.00014 (Prayer bead)
LSM: chi^2 = 66.9, n_freedom = 40

. . .

New observation 10/27/2017

BS Cas

Pavol A. Dubovsky, AO Kolonica

Celestron 11

Celestron 11
#Telescope>C11 280/2800
#CCD>MII G2-1600
#Observer>Medulka
#Filter>I
#Exposure>60s
#Target>BS Cas
#Position>01:21:38.57;+59:10:27.0
#MainComp>01:21:55.21;+59:13:15.9;B=11.005;V=10.538;R=10.262;I=9.980
#Source>SRO50
#Time system>JD heliocentric
#Magnitude system>V-C
#Reduction process>Ensemble photometry with Muniwin and MCV
#Note>

----- EBFit result: -----
TminHJD = 2458036.50356
Error (1 sigma): +0.00013/-0.00016 (Bootstrapping), +0.00008/-0.00008 (Prayer bead), +0.00014/-0.00014 (LSM)
Error (95% CI): +0.00027/-0.00032 (Bootstrapping), +0.00017/-0.00015 (Prayer bead)
LSM: chi^2 = 53.7, n_freedom = 36

. . .

New minimum 10/6/2017

BS Cas

Nosáľ P., Vígľaš

NWT 150/600 + Canon 20D + MPCC mk.III

NWT 150/600 + Canon 20D + MPCC mk.III

----- EBFit result: -----
Tmin = 2458028.35193
Error (1 sigma): +0.00014/-0.00013 (Bootstrapping), +0.00004/-0.00005 (Prayer bead), +0.00010/-0.00010 (LSM)
Error (95% CI): +0.00028/-0.00028 (Bootstrapping), +0.00008/-0.00007 (Prayer bead)
LSM: chi^2 = 304.5, n_freedom = 139

. . .

New observation 10/5/2017

BS Cas

Pavol A. Dubovsky, AO Kolonica

Celestron 14

Celestron 14
#Telescope>C14
#Instrument>Moravian Instruments, G2-1600
#Observer>DPV
#Filter>V
#Exposure>60.0
#Target>BS Cas
#Position>01:21:38.57;+59:10:27.0
#MainComp>01:21:55.21;+59:13:15.9;B=11.005;V=10.538;R=10.262;I=9.980
#Source>SRO
#Time system>JD heliocentric
#Magnitude system>V-C
#Reduction process>Images calibrated with OLDAS, Ensemble photometry with CoLiTec-VS
#Note>Cmp8 = V1276 Cas

----- EBFit result: -----
TminHJD = 2458025.48904
Error (1 sigma): +0.00011/-0.00009 (Bootstrapping), +0.00011/-0.00012 (Prayer bead), +0.00003/-0.00003 (LSM)
Error (95% CI): +0.00022/-0.00018 (Bootstrapping), +0.00014/-0.00024 (Prayer bead)
LSM: chi^2 = 465.8, n_freedom = 37

. . .

New observation 10/5/2017

BS Cas

Pavol A. Dubovsky, AO Kolonica

Celestron 14

Celestron 14
#Telescope>C14
#Instrument>Moravian Instruments, G2-1600
#Observer>DPV
#Filter>I
#Exposure>60.0
#Target>BS Cas
#Position>01:21:38.57;+59:10:27.0
#MainComp>01:21:55.21;+59:13:15.9;B=11.005;V=10.538;R=10.262;I=9.980
#Source>SRO
#Time system>JD heliocentric
#Magnitude system>V-C
#Reduction process>Images calibrated with OLDAS, Ensemble photometry with CoLiTec-VS
#Note>Cmp8 = V1276 Cas

----- EBFit result: -----
TminHJD = 2458025.48898
Error (1 sigma): +0.00011/-0.00010 (Bootstrapping), +0.00012/-0.00018 (Prayer bead), +0.00004/-0.00004 (LSM)
Error (95% CI): +0.00025/-0.00020 (Bootstrapping), +0.00017/-0.00026 (Prayer bead)
LSM: chi^2 = 284.7, n_freedom = 36

. . .

New minimum 2/27/2017

BS Cas

Filip Walter, Vinohrady, Znojmo, Česká Republika

Set sekce, NWT 150/750 + G2-1600

Set sekce, NWT 150/750 + G2-1600
V poli měření CzeV134 Cas

SS_NWT150/760_G21600_90_V_-10c

----- EBFit result: -----
Tmin = 2457811.42738
Error (1 sigma): +0.00031/-0.00030 (Bootstrapping), +0.00007/-0.00005 (Prayer bead), +0.00027/-0.00027 (LSM)
Error (95% CI): +0.00063/-0.00055 (Bootstrapping), +0.00015/-0.00014 (Prayer bead)
LSM: chi^2 = 56.1, n_freedom = 42

. . .

New observation 2/27/2017

BS Cas

Filip Walter, Vinohrady, Znojmo, Česká Republika

Set sekce, NWT 150/750 + G2-1600

Set sekce, NWT 150/750 + G2-1600
V poli měření CzeV134 Cas

SS_NWT150/760_G21600_90_V_-10c

. . .

New minimum 2/27/2017

BS Cas

Filip Walter, Vinohrady, Znojmo, Česká Republika

Set sekce, NWT 150/750 + G2-1600

Set sekce, NWT 150/750 + G2-1600
V poli měření CzeV134 Cas

SS_NWT150/760_G21600_40_C_-10c

----- EBFit result: -----
Tmin = 2457811.64885
Error (1 sigma): +0.00046/-0.00047 (Bootstrapping), +0.00075/-0.00060 (Prayer bead), +0.00021/-0.00021 (LSM)
Error (95% CI): +0.00094/-0.00099 (Bootstrapping), +0.00106/-0.00145 (Prayer bead)
LSM: chi^2 = 331.2, n_freedom = 71

. . .

New minimum 2/27/2017

BS Cas

Filip Walter, Vinohrady, Znojmo, Česká Republika

Set sekce, NWT 150/750 + G2-1600

Set sekce, NWT 150/750 + G2-1600
V poli měření CzeV134 Cas

SS_NWT150/760_G21600_40_C_-10c

----- EBFit result: -----
Tmin = 2457811.42754
Error (1 sigma): +0.00035/-0.00036 (Bootstrapping), +0.00059/-0.00036 (Prayer bead), +0.00014/-0.00014 (LSM)
Error (95% CI): +0.00064/-0.00069 (Bootstrapping), +0.00080/-0.00073 (Prayer bead)
LSM: chi^2 = 539.5, n_freedom = 80

. . .

New observation 2/27/2017

BS Cas

Filip Walter, Vinohrady, Znojmo, Česká Republika

Set sekce, NWT 150/750 + G2-1600

Set sekce, NWT 150/750 + G2-1600
V poli měření CzeV134 Cas

SS_NWT150/760_G21600_40_C_-10c

. . .

New observation 12/18/2016

BS Cas

Smolka M., private observatory Motešice, SK

NWT 250/1000 + ATIK 314L+ + MPCC

NWT 250/1000 + ATIK 314L+ + MPCC
measurement interrupted by clouds

. . .

New minimum 12/18/2016

BS Cas

Smolka M., private observatory Motešice, SK

NWT 250/1000 + ATIK 314L+ + MPCC

NWT 250/1000 + ATIK 314L+ + MPCC
measurement interrupted by clouds

----- EBFit result: -----
Tmin = 2457740.28840
Error (1 sigma): +0.00009/-0.00009 (Bootstrapping), +0.00006/-0.00007 (Prayer bead), +0.00007/-0.00007 (LSM)
Error (95% CI): +0.00019/-0.00018 (Bootstrapping), +0.00008/-0.00010 (Prayer bead)
LSM: chi^2 = 172.0, n_freedom = 90

. . .

New observation 2/13/2016

BS Cas

Smolka M., private observatory Motešice, SK

NWT 250/1200 + ATIK 314L+ + MPCC

NWT 250/1200 + ATIK 314L+ + MPCC
full Moon. Filter Baader CCD R (bandpass 600-700nm). Field V1094 Cas

. . .

New observation 2/13/2016

BS Cas

Smolka M., private observatory Motešice, SK

NWT 250/1200 + ATIK 314L+ + MPCC

NWT 250/1200 + ATIK 314L+ + MPCC
full Moon. Filter Baader CCD R (bandpass 600-700nm). Field V1094 Cas

. . .

New minimum 11/25/2015

BS Cas

Smolka M., private observatory Motešice, SK

NWT 250/1200 + ATIK 314L+ + MPCC

NWT 250/1200 + ATIK 314L+ + MPCC
Filter Baader CCD R

----- EBFit result: -----
Tmin = 2457265.47002
Error (1 sigma): +0.00010/-0.00009 (Bootstrapping), +0.00007/-0.00007 (Prayer bead), +0.00006/-0.00006 (LSM)
Error (95% CI): +0.00020/-0.00018 (Bootstrapping), +0.00015/-0.00014 (Prayer bead)
LSM: chi^2 = 366.5, n_freedom = 119

. . .

New minimum 11/25/2015

BS Cas

Smolka M., private observatory Motešice, SK

NWT 250/1200 + ATIK 314L+ + MPCC

NWT 250/1200 + ATIK 314L+ + MPCC
full Moon. Filter Baader CCD R

----- EBFit result: -----
Tmin = 2457351.57816
Error (1 sigma): +0.00009/-0.00009 (Bootstrapping), +0.00004/-0.00005 (Prayer bead), +0.00007/-0.00007 (LSM)
Error (95% CI): +0.00019/-0.00017 (Bootstrapping), +0.00011/-0.00010 (Prayer bead)
LSM: chi^2 = 423.7, n_freedom = 221

----- EBFit result: -----
Tmin = 2457351.35784
Error (1 sigma): +0.00007/-0.00008 (Bootstrapping), +0.00006/-0.00005 (Prayer bead), +0.00006/-0.00006 (LSM)
Error (95% CI): +0.00016/-0.00016 (Bootstrapping), +0.00009/-0.00016 (Prayer bead)
LSM: chi^2 = 231.3, n_freedom = 163

. . .

New minimum 11/25/2015

BS Cas

Smolka M., private observatory Motešice, SK

NWT 250/1200 + ATIK 314L+ + MPCC

NWT 250/1200 + ATIK 314L+ + MPCC
full Moon. Filter Baader CCD R

----- EBFit result: -----
Tmin = 2457351.35784
Error (1 sigma): +0.00007/-0.00008 (Bootstrapping), +0.00007/-0.00005 (Prayer bead), +0.00006/-0.00006 (LSM)
Error (95% CI): +0.00016/-0.00016 (Bootstrapping), +0.00009/-0.00016 (Prayer bead)
LSM: chi^2 = 231.3, n_freedom = 163

----- EBFit result: -----
Tmin = 2457351.57816
Error (1 sigma): +0.00009/-0.00010 (Bootstrapping), +0.00004/-0.00005 (Prayer bead), +0.00007/-0.00007 (LSM)
Error (95% CI): +0.00018/-0.00018 (Bootstrapping), +0.00011/-0.00010 (Prayer bead)
LSM: chi^2 = 423.7, n_freedom = 221

. . .

New observation 10/23/2015

BS Cas

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 = TYC 3682-628-1, B=11.005 V=10.538 R=10.262 I=9.980 (Henden)
check#2 = BS Cas_var1 = USNOA U1425_01825909, Position: 012023.37 +591715.0
check#3 = BS Cas_var3 = USNOA U1425_01870026, Position: 012226.36 +591235.6
JD heliocentric, V-C magnitudes

----- EBFit result: -----
TminHJD = 2457279.34617
Error (1 sigma): +0.00010/-0.00010 (Bootstrapping), +0.00002/-0.00003 (Prayer bead), +0.00006/-0.00006 (LSM)
Error (95% CI): +0.00019/-0.00021 (Bootstrapping), +0.00005/-0.00006 (Prayer bead)
LSM: chi^2 = 201.9, n_freedom = 61

. . .

New observation 10/23/2015

BS Cas

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 = TYC 3682-628-1, B=11.005 V=10.538 R=10.262 I=9.980 (Henden)
check#2 = BS Cas_var1 = USNOA U1425_01825909, Position: 012023.37 +591715.0
check#3 = BS Cas_var3 = USNOA U1425_01870026, Position: 012226.36 +591235.6
JD heliocentric, V-C magnitudes

----- EBFit result: -----
TminHJD = 2457279.34616
Error (1 sigma): +0.00012/-0.00011 (Bootstrapping), +0.00005/-0.00007 (Prayer bead), +0.00007/-0.00007 (LSM)
Error (95% CI): +0.00024/-0.00023 (Bootstrapping), +0.00007/-0.00009 (Prayer bead)
LSM: chi^2 = 232.4, n_freedom = 63

. . .

New observation 10/22/2015

BS Cas

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 = TYC 3682-628-1, B=11.005 V=10.538 R=10.262 I=9.980 (Henden)
check#2 = BS Cas_var1 = USNOA U1425_01825909, Position: 012023.37 +591715.0
check#3 = BS Cas_var3 = USNOA U1425_01870026, Position: 012226.36 +591235.6
JD heliocentric, V-C magnitudes

----- EBFit result: -----
TminHJD = 2457245.43088
Error (1 sigma): +0.00013/-0.00012 (Bootstrapping), +0.00006/-0.00006 (Prayer bead), +0.00007/-0.00007 (LSM)
Error (95% CI): +0.00024/-0.00025 (Bootstrapping), +0.00012/-0.00017 (Prayer bead)
LSM: chi^2 = 234.3, n_freedom = 58

. . .

New observation 10/22/2015

BS Cas

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 = TYC 3682-628-1, B=11.005 V=10.538 R=10.262 I=9.980 (Henden)
check#2 = BS Cas_var1 = USNOA U1425_01825909, Position: 012023.37 +591715.0
check#3 = BS Cas_var3 = USNOA U1425_01870026, Position: 012226.36 +591235.6
JD heliocentric, V-C magnitudes

----- EBFit result: -----
TminHJD = 2457245.43090
Error (1 sigma): +0.00013/-0.00013 (Bootstrapping), +0.00004/-0.00004 (Prayer bead), +0.00007/-0.00007 (LSM)
Error (95% CI): +0.00026/-0.00027 (Bootstrapping), +0.00006/-0.00009 (Prayer bead)
LSM: chi^2 = 256.7, n_freedom = 63

. . .

New observation 10/3/2014

BS Cas

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 = TYC 3682-628-1, B=11.005 V=10.538 R=10.262 I=9.980 (Henden)
check#3 = BS Cas_var3 = USNOA U1425_01870026, Position: 012226.36 +591235.6
JD heliocentric, V-C magnitudes

----- EBFit result: -----
TminHJD = 2456929.39893
Error (1 sigma): +0.00010/-0.00012 (Bootstrapping), +0.00003/-0.00003 (Prayer bead), +0.00006/-0.00006 (LSM)
Error (95% CI): +0.00021/-0.00023 (Bootstrapping), +0.00005/-0.00010 (Prayer bead)
LSM: chi^2 = 195.3, n_freedom = 59

. . .

New observation 10/3/2014

BS Cas

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 = TYC 3682-628-1, B=11.005 V=10.538 R=10.262 I=9.980 (Henden)
check#3 = BS Cas_var3 = USNOA U1425_01870026, Position: 012226.36 +591235.6
JD heliocentric, V-C magnitudes

----- EBFit result: -----
TminHJD = 2456929.39856
Error (1 sigma): +0.00010/-0.00012 (Bootstrapping), +0.00004/-0.00005 (Prayer bead), +0.00008/-0.00008 (LSM)
Error (95% CI): +0.00023/-0.00023 (Bootstrapping), +0.00006/-0.00008 (Prayer bead)
LSM: chi^2 = 132.5, n_freedom = 54

. . .

New minimum 9/22/2013

BS Cas

M. Magris, Opicina, Trieste, IT

Schmidt-Newton 0.25m F/4, CCD MX 716

Schmidt-Newton 0.25m F/4, CCD MX 716
Binn 2x2, exp 45 sec

----- EBFit result: -----
Tmin = 2456558.30408
Error (1 sigma): +0.00016/-0.00017 (Bootstrapping), +0.00012/-0.00010 (Prayer bead), +0.00019/-0.00019 (LSM)
Error (95% CI): +0.00030/-0.00033 (Bootstrapping), +0.00021/-0.00027 (Prayer bead)
LSM: chi^2 = 171.2, n_freedom = 154

. . .

New observation 11/11/2011

BS Cas

Kateřina Onderková, HaP J. Palisy Ostrava

RL 200/1200, ST8-XME

RL 200/1200, ST8-XME
technické problémy

. . .

New observation 12/16/2009

BS Cas

Pavol A. Dubovsky, AO Kolonica

PÚPAVA RL 280/1500

PÚPAVA RL 280/1500
CCD+R; exp 30s

Pupava 280/1500 + Starlight Express SXVF-H9 + DPV

Analyzed with MCV, MainComp = TYC3682-02297-1, V=12.13, B-V=0.45, S5 on the chart

JD geocentric, V-C magnitudes

. . .

New observation 9/3/2009

BS Cas

Pavol A. Dubovsky, AO Kolonica

PÚPAVA RL 280/1500

PÚPAVA RL 280/1500
TminHJD = 2455062.4820 +/- 0.0002

CCD+R; exp 30s

Pupava 285/1500 + Starlight Express SXVF-H9 + DPV

Analyzed with MCV, MainComp = TYC3682-02297-1, V=12.13, B-V=0.45

JD geocentric, V-C magnitudes

. . .

New observation 8/18/2009

BS Cas

Pavol A. Dubovsky, AO Kolonica

PÚPAVA RL 280/1500

PÚPAVA RL 280/1500
TminHJD = 2455061.3812 +/- 0.0002; secondary minimum

CCD+R; exp 30s

Pupava 285/1500 + Starlight Express SXVF-H9 + DPV

Analyzed with MCV, MainComp = TYC3682-02297-1, V=12.13, B-V=0.45

JD geocentric, V-C magnitudes

. . .

New observation 8/18/2009

BS Cas

Pavol A. Dubovsky, AO Kolonica

PÚPAVA RL 280/1500

PÚPAVA RL 280/1500
TminHJD = 2455059.3999 +/- 0.0002

CCD+R; exp 30s

Pupava 285/1500 + Starlight Express SXVF-H9 + DPV

Analyzed with MCV, MainComp = TYC3682-02297-1, V=12.13, B-V=0.45

JD geocentric, V-C magnitudes

. . .

New minimum 8/16/2009

BS Cas

Radek Kocián, HaP J.Palisy Ostrava (R.Kocián)

Newton 200/1200 + SBIG ST8-XME

Newton 200/1200 + SBIG ST8-XME
jasno

. . .

New minimum 8/16/2009

BS Cas

Radek Kocián, HaP J.Palisy Ostrava (R.Kocián)

Newton 200/1200 + SBIG ST8-XME

Newton 200/1200 + SBIG ST8-XME
jasno

. . .

New minimum 8/16/2009

BS Cas

Radek Kocián, HaP J.Palisy Ostrava (R.Kocián)

Newton 200/1200 + SBIG ST8-XME

Newton 200/1200 + SBIG ST8-XME
jasno

. . .

New observation 8/13/2009

BS Cas

Pavol A. Dubovsky, AO Kolonica

PÚPAVA RL 280/1500

PÚPAVA RL 280/1500
TminHJD = 2455054.5543 +/- 0.0001

CCD+R; exp 30s

Pupava 280/1500 + Starlight Express SXVF-H9 + DPV

Analyzed with MCV, MainComp = TYC3682-02297-1, V=12.13, B-V=0.45

JD geocentric, V-C magnitudes

. . .

New observation 8/13/2009

BS Cas

Pavol A. Dubovsky, AO Kolonica

PÚPAVA RL 280/1500

PÚPAVA RL 280/1500
TminHJD = 2455052.3522 +/- 0.0001

2455052.5731 +/- 0.0002 secondary

CCD+R; exp 30s

Pupava 280/1500 + Starlight Express SXVF-H9 + DPV

Analyzed with MCV, MainComp = TYC3682-02297-1, V=12.13, B-V=0.45

JD geocentric, V-C magnitudes

. . .

New observation 8/13/2009

BS Cas

Pavol A. Dubovsky, AO Kolonica

PÚPAVA RL 280/1500

PÚPAVA RL 280/1500
TminHJD = 2455051.4711 +/- 0.0001

CCD+CV; exp 30s;

Pupava 280/1500 + Meade DSI Pro + DPV

Analyzed with MCV, MainComp = USNOA U1425_01870634, r=13.4

JD geocentric, V-C magnitudes

. . .

New observation 8/6/2009

BS Cas

Pavol A. Dubovsky, AO Kolonica

PÚPAVA RL 280/1500

PÚPAVA RL 280/1500
TminHJD = 2455042.4412 +/- 0.0001; secondary minimum

CCD+CV; exp 30s;

Pupava 280/1500 + Meade DSI Pro + DPV

Analyzed with MCV, MainComp = USNOA U1425_01870634, r=13.4

JD geocentric, V-C magnitudes

. . .

New observation 8/24/2008

BS Cas

Pavol A. Dubovsky, AO Kolonica

Hugo RL 265/1360

Hugo RL 265/1360
CCD+C; exp 20s;

TminHJD = 2454689.4053 +/- 0.0001

Hugo 265/1360mm + Meade + DPV

Analyzed with MCV, Mean Comparison = TYC3682-00320-1, V=11.68, B-V=0.83

JD geocentric, V-C magnitudes

. . .

New observation 3/9/2008

BS Cas

Ladislav Šmelcer, hvězdárna Valašské Meziříčí

Celestron 280/1765 + CCD ST7

Celestron 280/1765 + CCD ST7
Předpověď primárního minima JDg=2454533,2945 (19h04m UT)
minimum nastává o 45 minut dříve
(podle Mo=27984,489 per.=0,4404832 dne)

. . .

New observation 3/9/2008

BS Cas

Ladislav Šmelcer, hvězdárna Valašské Meziříčí

Celestron 280/1765 + CCD ST7

Celestron 280/1765 + CCD ST7
Předpověď primárního minima JDg=2454533,2945 (19h04m UT)
minimum nastává o 45 minut dříve
(podle Mo=27984,489 per.=0,4404832 dne)

. . .

New observation 11/27/2007