Recent

New minimum 10/2/2026

LO And

Bill Tschumy, Home Observatory, 10/2/2026

Agema 130 SD; ZWO 2600MM Pro, V,B

. . .

New observation 10/2/2026

LO And

Bill Tschumy, Home Observatory, 10/2/2026

Agema 130 SD; ZWO 2600MM Pro, V,B

. . .

New minimum 7/13/2026

LO And

Giuseppe Maria Raffaele Nicosia, 7/12/2026

Seestar S50

. . .

New observation 7/13/2026

LO And

Paolo Demaria, Caraglio, home, 7/10/2026

Seestar S50

. . .

New observation 7/10/2026

LO And

Paolo Demaria, Caraglio, home, 7/2/2026

Seestar S50

. . .

New observation 7/2/2026

LO And

Sjoerd Dufoer, Brussels - Heliport, 6/29/2026

Vixen VMC200L - ZWO ASI 294MM

. . .

New observation 6/30/2026

LO And

Sjoerd Dufoer, Brussels - Heliport, 6/29/2026

Vixen VMC200L - ZWO ASI 294MM

. . .

New minimum 6/20/2026

LO And

Paolo Demaria, Caraglio, home, 6/20/2026

Seestar S50

. . .

New observation 6/20/2026

LO And

Paolo Demaria, Caraglio, home, 6/16/2026

Seestar S50

. . .

New observation 6/16/2026

LO And

Bill Tschumy, Home Observatory, 10/17/2025

Agema 130 SD; ZWO 2600MM Pro, V,B

. . .

New observation 10/17/2025

LO And

Bill Tschumy, Home Observatory, 10/17/2025

Agema 130 SD; ZWO 2600MM Pro, V,B

. . .

New observation 9/21/2024

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

----- EBFit result: -----
TminGJD = 2460574.35497
Error (1 sigma): +0.00008/-0.00008 (Bootstrapping), +0.00004/-0.00004 (Prayer bead), +0.00005/-0.00005 (LSM)
Error (95% CI): +0.00018/-0.00016 (Bootstrapping), +0.00006/-0.00011 (Prayer bead)
LSM: chi^2 = 422.9, n_freedom = 137

. . .

New observation 9/6/2024

LO And

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>LO And
#Position>
#MainComp>
#Source>
#Magnitude system>
#Time system>JD geocentric
#Reduction>Muniwin
#Comment>

----- EBFit result: -----
TminGJD = 2460559.51763
Error (1 sigma): +0.00012/-0.00012 (Bootstrapping), +0.00004/-0.00006 (Prayer bead), +0.00005/-0.00005 (LSM)
Error (95% CI): +0.00027/-0.00025 (Bootstrapping), +0.00007/-0.00010 (Prayer bead)
LSM: chi^2 = 297.5, n_freedom = 34

. . .

New minimum 6/6/2023

LO And

Sjoerd Dufoer, Brussels - Heliport

Vixen 20cm VMC200L

Vixen 20cm VMC200L

----- EBFit result: -----
Tmin = 2460101.47510
Error (1 sigma): +0.00027/-0.00028 (Bootstrapping), +0.00018/-0.00014 (Prayer bead), +0.00024/-0.00024 (LSM)
Error (95% CI): +0.00051/-0.00053 (Bootstrapping), +0.00031/-0.00028 (Prayer bead)
LSM: chi^2 = 165.5, n_freedom = 129

. . .

New observation 12/4/2022

LO And

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;I 60s
#Target>LO And
#Position>20:22:59.39;+52:39:05.6
#MainComp>23:27:09.56;+45:36:53.2;B=13.00;V=12.16;R=11.68;I=11.23
#Source>Skiff
#Magnitude system>ABS
#Time system>JD geocentric
#Reduction>Ensemble photometry with CoLiTecVS
#Comment>

. . .

New observation 12/4/2022

LO And

Pavol A. Dubovsky, AO Kolonica

M20 RL 200/2000

. . .

New observation 11/16/2022

LO And

Ehrenberger R., Crow-Observatory Vranová

NWT 150/600+MII G2-8300

. . .

New minimum 11/16/2022

LO And

Roman Ehrenberger, Crow-Observatory Vranová

NWT 150/600+MII G2-8300

NWT 150/600+MII G2-8300

----- EBFit result: -----
Tmin = 2459512.35378
Error (1 sigma): +0.00013/-0.00014 (Bootstrapping), +0.00012/-0.00013 (Prayer bead), +0.00004/-0.00004 (LSM)
Error (95% CI): +0.00026/-0.00027 (Bootstrapping), +0.00028/-0.00017 (Prayer bead)
LSM: chi^2 = 2789.4, n_freedom = 200

. . .

New minimum 11/16/2022

LO And

Roman Ehrenberger, Crow-Observatory Vranová

NWT 150/600+MII G2-8300

NWT 150/600+MII G2-8300

----- EBFit result: -----
Tmin = 2459512.54527
Error (1 sigma): +0.00013/-0.00013 (Bootstrapping), +0.00012/-0.00012 (Prayer bead), +0.00004/-0.00004 (LSM)
Error (95% CI): +0.00027/-0.00024 (Bootstrapping), +0.00016/-0.00023 (Prayer bead)
LSM: chi^2 = 2336.1, n_freedom = 193

. . .

New observation 11/5/2022

LO And

Ehrenberger R., Crow-Observatory Vranová

NWT 150/600+MII G2-8300

. . .

New minimum 11/5/2022

LO And

Roman Ehrenberger, Crow-Observatory Vranová

NWT 150/600+MII G2-8300

NWT 150/600+MII G2-8300

----- EBFit result: -----
Tmin = 2459516.53951
Error (1 sigma): +0.00011/-0.00009 (Bootstrapping), +0.00005/-0.00005 (Prayer bead), +0.00004/-0.00004 (LSM)
Error (95% CI): +0.00019/-0.00018 (Bootstrapping), +0.00008/-0.00009 (Prayer bead)
LSM: chi^2 = 1331.4, n_freedom = 180

. . .

New minimum 11/5/2022

LO And

Roman Ehrenberger, Crow-Observatory Vranová

NWT 150/600+MII G2-8300

NWT 150/600+MII G2-8300

----- EBFit result: -----
Tmin = 2459516.34881
Error (1 sigma): +0.00011/-0.00009 (Bootstrapping), +0.00008/-0.00009 (Prayer bead), +0.00003/-0.00003 (LSM)
Error (95% CI): +0.00020/-0.00019 (Bootstrapping), +0.00010/-0.00015 (Prayer bead)
LSM: chi^2 = 3383.4, n_freedom = 245

. . .

New observation 10/21/2022

LO And

Ehrenberger R., Crow-Observatory Vranová

NWT 300/1200+MII G2-8300

. . .

New minimum 10/21/2022

LO And

Roman Ehrenberger, Crow-Observatory Vranová

NWT 300/1200+MII G2-8300

NWT 300/1200+MII G2-8300

----- EBFit result: -----
Tmin = 2459873.39344
Error (1 sigma): +0.00015/-0.00015 (Bootstrapping), +0.00022/-0.00019 (Prayer bead), +0.00001/-0.00001 (LSM)
Error (95% CI): +0.00032/-0.00028 (Bootstrapping), +0.00041/-0.00025 (Prayer bead)
LSM: chi^2 = 17572.6, n_freedom = 190

. . .

New observation 10/2/2021

LO And

Červinka Ladislav, Dolní Bousov

NWT 200/1000 + Atik 314L+

. . .

New minimum 10/2/2021

LO And

Ladislav Červinka, Dolní Bousov

NWT 200/1000 + Atik 314L+

NWT 200/1000 + Atik 314L+

----- EBFit result: -----
Tmin = 2459489.33777
Error (1 sigma): +0.00011/-0.00009 (Bootstrapping), +0.00008/-0.00008 (Prayer bead), +0.00005/-0.00005 (LSM)
Error (95% CI): +0.00021/-0.00020 (Bootstrapping), +0.00012/-0.00023 (Prayer bead)
LSM: chi^2 = 416.6, n_freedom = 91

. . .

New minimum 6/12/2021

LO And

Sjoerd Dufoer, Brussels - Heliport

Vixen 20cm VMC200L

Vixen 20cm VMC200L

----- EBFit result: -----
Tmin = 2459377.48901
Error (1 sigma): +0.00033/-0.00033 (Bootstrapping), +0.00029/-0.00026 (Prayer bead), +0.00020/-0.00020 (LSM)
Error (95% CI): +0.00065/-0.00074 (Bootstrapping), +0.00055/-0.00071 (Prayer bead)
LSM: chi^2 = 608.5, n_freedom = 190

. . .

New observation 9/25/2020

LO And

Pavol A. Dubovsky, AO Kolonica

Celestron 14

. . .

New observation 9/25/2020

LO And

Pavol A. Dubovsky, AO Kolonica

Celestron 14

. . .

New minimum 5/13/2020

LO And

Filip Walter, Štefánik Observatory, Prague, Czech Republic

CZ Kometensucher REF 200/1370 + CCD SBIG ST7

CZ Kometensucher REF 200/1370 + CCD SBIG ST7
prechody oblacnost, dobry seeng, preruseno z org. duvodu

D1_ST7_o83_60C_-5C

----- EBFit result: -----
Tmin = 2458704.48480
Error (1 sigma): +0.00014/-0.00013 (Bootstrapping), +0.00020/-0.00026 (Prayer bead), +0.00007/-0.00007 (LSM)
Error (95% CI): +0.00025/-0.00026 (Bootstrapping), +0.00030/-0.00034 (Prayer bead)
LSM: chi^2 = 280.8, n_freedom = 81

. . .

New observation 5/13/2020

LO And

Filip Walter, Štefánik Observatory, Prague, Czech Republic

CZ Kometensucher REF 200/1370 + CCD SBIG ST7

CZ Kometensucher REF 200/1370 + CCD SBIG ST7
prechody oblacbosti, dobry seeing, preruseno z org. duvodu

. . .

New observation 10/30/2019

LO And

Pavol A. Dubovsky, AO Kolonica

PÚPAVA RL 280/1500

PÚPAVA RL 280/1500
#Observatory>Kolonica
#Observer>DPV
#Telescope>Pupava
#Instrument>MII G2-1600
#Filter>V
#Exposure>120s
#Target>LO And
#Position>20:22:59.39;+52:39:05.6
#MainComp>23:27:09.56;+45:36:53.2;B=13.00;V=12.16;R=11.68;I=11.23
#Source>Skiff
#Magnitude system>ABS
#Time system>JD geocentric
#Reduction>Ensemble photometry with CoLiTecVS and MCV
#Comment>

----- EBFit result: -----
TminGJD = 2458783.42826
Error (1 sigma): +0.00040/-0.00033 (Bootstrapping), +0.00007/-0.00003 (Prayer bead), +0.00094/-0.00094 (LSM)
Error (95% CI): +0.00077/-0.00070 (Bootstrapping), +0.00011/-0.00012 (Prayer bead)
LSM: chi^2 = 4.8, n_freedom = 25

. . .

New observation 10/30/2019

LO And

Pavol A. Dubovsky, AO Kolonica

PÚPAVA RL 280/1500

PÚPAVA RL 280/1500
#Observatory>Kolonica
#Observer>DPV
#Telescope>Pupava
#Instrument>MII G2-1600
#Filter>I
#Exposure>60s
#Target>LO And
#Position>20:22:59.39;+52:39:05.6
#MainComp>23:27:09.56;+45:36:53.2;B=13.00;V=12.16;R=11.68;I=11.23
#Source>Skiff
#Magnitude system>ABS
#Time system>JD geocentric
#Reduction>Ensemble photometry with CoLiTecVS and MCV
#Comment>

----- EBFit result: -----
TminGJD = 2458783.42864
Error (1 sigma): +0.00054/-0.00048 (Bootstrapping), +0.00043/-0.00049 (Prayer bead), +0.00087/-0.00087 (LSM)
Error (95% CI): +0.00112/-0.00089 (Bootstrapping), +0.00055/-0.00076 (Prayer bead)
LSM: chi^2 = 5.8, n_freedom = 25

. . .

New observation 7/26/2019

LO And

Pavol A. Dubovsky, AO Kolonica

Celestron 14

Celestron 14
#Observatory>Kolonica
#Observer>DPV
#Telescope>C14
#Instrument>MII G2-1600
#Filter>I
#Exposure>60s
#Target>LO And
#Position>20:22:59.39;+52:39:05.6
#MainComp>23:27:09.56;+45:36:53.2;B=13.00;V=12.16;R=11.68;I=11.23
#Source>Skiff
#Magnitude system>ABS
#Time system>JD geocentric
#Reduction>Ensemble photometry with CoLiTecVS and MCV
#Comment>

----- EBFit result: -----
TminGJD = 2458690.40886
Error (1 sigma): +0.00030/-0.00044 (Bootstrapping), +0.00046/-0.00036 (Prayer bead), +0.00153/-0.00153 (LSM)
Error (95% CI): +0.00056/-0.00106 (Bootstrapping), +0.00074/-0.00045 (Prayer bead)
LSM: chi^2 = 1.5, n_freedom = 19

. . .

New observation 7/26/2019

LO And

Pavol A. Dubovsky, AO Kolonica

Celestron 14

Celestron 14
#Observatory>Kolonica
#Observer>DPV
#Telescope>C14
#Instrument>MII G2-1600
#Filter>R
#Exposure>60s
#Target>LO And
#Position>20:22:59.39;+52:39:05.6
#MainComp>23:27:09.56;+45:36:53.2;B=13.00;V=12.16;R=11.68;I=11.23
#Source>Skiff
#Magnitude system>ABS
#Time system>JD geocentric
#Reduction>Ensemble photometry with CoLiTecVS and MCV
#Comment>

----- EBFit result: -----
TminGJD = 2458690.40868
Error (1 sigma): +0.00013/-0.00015 (Bootstrapping), +0.00010/-0.00007 (Prayer bead), +0.00151/-0.00151 (LSM)
Error (95% CI): +0.00025/-0.00034 (Bootstrapping), +0.00021/-0.00015 (Prayer bead)
LSM: chi^2 = 0.2, n_freedom = 17

. . .

New observation 7/26/2019

LO And

Pavol A. Dubovsky, AO Kolonica

Celestron 14

Celestron 14
#Observatory>Kolonica
#Observer>DPV
#Telescope>C14
#Instrument>MII G2-1600
#Filter>V
#Exposure>60s
#Target>LO And
#Position>20:22:59.39;+52:39:05.6
#MainComp>23:27:09.56;+45:36:53.2;B=13.00;V=12.16;R=11.68;I=11.23
#Source>Skiff
#Magnitude system>ABS
#Time system>JD geocentric
#Reduction>Ensemble photometry with CoLiTecVS and MCV
#Comment>

----- EBFit result: -----
TminGJD = 2458690.40897
Error (1 sigma): +0.00032/-0.00028 (Bootstrapping), +0.00032/-0.00031 (Prayer bead), +0.00147/-0.00147 (LSM)
Error (95% CI): +0.00063/-0.00061 (Bootstrapping), +0.00035/-0.00040 (Prayer bead)
LSM: chi^2 = 0.8, n_freedom = 17

. . .

New observation 9/8/2018

LO And

Pavol A. Dubovsky, AO Kolonica

Ziga CDK20

Ziga CDK20
#Observatory>Kolonica
#Observer>DPV
#Telescope>Ziga
#Instrument>MII G4-16000
#Filter>V
#Exposure>30.0
#Target>LO And
#Position>23:27:06.70;+45:33:22.2
#MainComp>23:27:09.53;+45:36:53.2;B=13.00;V=12.16;R=11.68;I=11.23
#Source>Skiff
#Time system>JD geocentric
#Magnitude system>DIF
#Reduction process>Ensemble photometry with CoLiTecVS and MCV
#Comment>subframe

----- EBFit result: -----
TminGJD = 2458369.31381
Error (1 sigma): +0.00010/-0.00010 (Bootstrapping), +0.00007/-0.00008 (Prayer bead), +0.00002/-0.00002 (LSM)
Error (95% CI): +0.00020/-0.00021 (Bootstrapping), +0.00014/-0.00016 (Prayer bead)
LSM: chi^2 = 1206.0, n_freedom = 72

. . .

New observation 9/8/2018

LO And

Pavol A. Dubovsky, AO Kolonica

Ziga CDK20

Ziga CDK20
#Observatory>Kolonica
#Observer>DPV
#Telescope>Ziga
#Instrument>MII G4-16000
#Filter>I
#Exposure>30.0
#Target>LO And
#Position>23:27:06.70;+45:33:22.2
#MainComp>23:27:09.53;+45:36:53.2;B=13.00;V=12.16;R=11.68;I=11.23
#Source>Skiff
#Time system>JD geocentric
#Magnitude system>DIF
#Reduction process>Ensemble photometry with CoLiTecVS and MCV
#Comment>subframe

----- EBFit result: -----
TminGJD = 2458369.31410
Error (1 sigma): +0.00017/-0.00014 (Bootstrapping), +0.00012/-0.00009 (Prayer bead), +0.00003/-0.00003 (LSM)
Error (95% CI): +0.00031/-0.00026 (Bootstrapping), +0.00022/-0.00031 (Prayer bead)
LSM: chi^2 = 722.2, n_freedom = 55

. . .

New minimum 8/30/2018

LO And

Adrián Mokrý, Stefanik observatory, Prague

Kometensucher CZ REF 200/1370 + CCD SBIG ST7

Kometensucher CZ REF 200/1370 + CCD SBIG ST7
jasno, na konci se zatáhlo, expozice 50s, chlazení -15°C, zpracováno pozorování jen z CCD
srovnávací GSC 03637-00299

----- EBFit result: -----
Tmin = 2458041.56288
Error (1 sigma): +0.00007/-0.00007 (Bootstrapping), +0.00002/-0.00002 (Prayer bead), +0.00005/-0.00005 (LSM)
Error (95% CI): +0.00015/-0.00016 (Bootstrapping), +0.00004/-0.00003 (Prayer bead)
LSM: chi^2 = 453.8, n_freedom = 136

. . .

New observation 8/30/2018

LO And

Adrián Mokrý, Stefanik observatory, Prague

Kometensucher CZ REF 200/1370 + CCD SBIG ST7

Kometensucher CZ REF 200/1370 + CCD SBIG ST7
jasno, na konci se zatáhlo, expozice 50s, chlazení -15°C, zpracováno pozorování jen z CCD
srovnávací GSC 03637-00299

----- EBFit result: -----
TminGJD = 2458041.56283
Error (1 sigma): +0.00007/-0.00007 (Bootstrapping), +0.00003/-0.00004 (Prayer bead), +0.00005/-0.00005 (LSM)
Error (95% CI): +0.00014/-0.00014 (Bootstrapping), +0.00006/-0.00007 (Prayer bead)
LSM: chi^2 = 342.6, n_freedom = 123

. . .

New observation 8/23/2018

LO And

Matúš Kamenec, Kolonica

SkyWatcher Newton 150/750

SkyWatcher Newton 150/750
Observatory>Kolonica
#Observer>Matus Kamenec
#Telescope>MASHA - SkyWatcher 150/750 / NEQ-6
#Instrument>Canon EOS 500D
#Filter>Clear
#Exposure>60s ISO 1600
#Target>LO And
#Position>
#MainComp>
#Source>
#Magnitude system>
#Time system>JD geocentric
#Reduction>Ensemble photometry with MuniWin and MCV
#Comment>guiding issues

----- EBFit result: -----
TminGJD = 2458353.33424
Error (1 sigma): +0.00051/-0.00018 (Bootstrapping), +0.00077/-0.00070 (Prayer bead), +0.00001/-0.00001 (LSM)
Error (95% CI): +0.00084/-0.00042 (Bootstrapping), +0.00122/-0.00132 (Prayer bead)
LSM: chi^2 = 11956.3, n_freedom = 87

. . .

New minimum 12/28/2017

LO And

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 = 2458091.40265
Error (1 sigma): +0.00015/-0.00013 (Bootstrapping), +0.00015/-0.00019 (Prayer bead), +0.00007/-0.00007 (LSM)
Error (95% CI): +0.00030/-0.00028 (Bootstrapping), +0.00020/-0.00021 (Prayer bead)
LSM: chi^2 = 1088.2, n_freedom = 225

. . .

New minimum 11/25/2017

LO And

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 = 2458035.47614
Error (1 sigma): +0.00015/-0.00017 (Bootstrapping), +0.00004/-0.00004 (Prayer bead), +0.00007/-0.00007 (LSM)
Error (95% CI): +0.00032/-0.00031 (Bootstrapping), +0.00007/-0.00006 (Prayer bead)
LSM: chi^2 = 714.3, n_freedom = 182

. . .

New observation 8/4/2017

LO And

Pavol A. Dubovsky, AO Kolonica

Celestron 11

Celestron 11
CCD+V; exp 60s
C11 280/2800 + MII G2-1600 + DPV
Ensemble photometry with CollitecVS and MCV, MainComp: USNO-B1.0 1356-0528947; V=12.16, B=13.00, R=11.68 I=11.23 (Skiff)
JD heliocentric, V-C magnitudes

----- EBFit result: -----
TminHJD = 2457961.48125
Error (1 sigma): +0.00011/-0.00011 (Bootstrapping), +0.00006/-0.00007 (Prayer bead), +0.00076/-0.00076 (LSM)
Error (95% CI): +0.00022/-0.00024 (Bootstrapping), +0.00008/-0.00012 (Prayer bead)
LSM: chi^2 = 0.9, n_freedom = 40

. . .

New observation 8/4/2017

LO And

Pavol A. Dubovsky, AO Kolonica

Celestron 11

Celestron 11
CCD+I; exp 60s
C11 280/2800 + MII G2-1600 + DPV
Ensemble photometry with CollitecVS and MCV, MainComp: USNO-B1.0 1356-0528947; V=12.16, B=13.00, R=11.68 I=11.23 (Skiff)
JD heliocentric, V-C magnitudes

----- EBFit result: -----
TminHJD = 2457961.48318
Error (1 sigma): +0.00014/-0.00013 (Bootstrapping), +0.00008/-0.00010 (Prayer bead), +0.00086/-0.00086 (LSM)
Error (95% CI): +0.00033/-0.00026 (Bootstrapping), +0.00014/-0.00021 (Prayer bead)
LSM: chi^2 = 1.0, n_freedom = 32

. . .

New observation 2/21/2017

LO And

Ladislav Červinka, Mladá Boleslav

R102/500 + Atik 314L+

R102/500 + Atik 314L+
sec min

. . .

New minimum 2/21/2017

LO And

Ladislav Červinka, Mladá Boleslav

R102/500 + Atik 314L+

R102/500 + Atik 314L+

----- EBFit result: -----
Tmin = 2457644.38227
Error (1 sigma): +0.00012/-0.00011 (Bootstrapping), +0.00011/-0.00008 (Prayer bead), +0.00011/-0.00011 (LSM)
Error (95% CI): +0.00025/-0.00022 (Bootstrapping), +0.00016/-0.00020 (Prayer bead)
LSM: chi^2 = 122.0, n_freedom = 73

. . .

New observation 11/29/2015

LO And

Pavol A. Dubovsky, AO Kolonica

Ziga CDK20

Ziga CDK20
CCD+V; exp 30s; Ziga binning 2x2 subframe 1024x1024
Ziga 508/3454 + MII G4-16000 + DPV
Ensamble photometry with C-Munipack and MCV, Mean Comp: USNO-B1.0 1356-0528947; V=12.16, B=13.00, R=11.68 I=11.23 (Skiff)
JD geocentric, V-C magnitudes

----- EBFit result: -----
TminGJD = 2457215.44085
Error (1 sigma): +0.00009/-0.00008 (Bootstrapping), +0.00004/-0.00004 (Prayer bead), +0.00006/-0.00006 (LSM)
Error (95% CI): +0.00017/-0.00016 (Bootstrapping), +0.00006/-0.00007 (Prayer bead)
LSM: chi^2 = 97.0, n_freedom = 41

. . .

New observation 11/29/2015

LO And

Pavol A. Dubovsky, AO Kolonica

Ziga CDK20

Ziga CDK20
CCD+I; exp 30s; Ziga binning 2x2 subframe 1024x1024
Ziga 508/3454 + MII G4-16000 + DPV
Ensamble photometry with C-Munipack and MCV, Mean Comp: USNO-B1.0 1356-0528947; V=12.16, B=13.00, R=11.68 I=11.23 (Skiff)
JD geocentric, V-C magnitudes

----- EBFit result: -----
TminGJD = 2457215.44105
Error (1 sigma): +0.00011/-0.00013 (Bootstrapping), +0.00006/-0.00006 (Prayer bead), +0.00007/-0.00007 (LSM)
Error (95% CI): +0.00023/-0.00024 (Bootstrapping), +0.00013/-0.00009 (Prayer bead)
LSM: chi^2 = 112.7, n_freedom = 46

. . .

New observation 10/22/2015

LO And

Pavol A. Dubovsky, AO Kolonica

Celestron 11

Celestron 11
CCD+V; exp 60s; secondary minimum
C11 280/2800 + MII G2-1600 + DPV
Ensamble photometry with C-Munipack and MCV, Mean Comp: USNO-B1.0 1356-0528947; V=12.16, B=13.00, R=11.68 I=11.23 (Skiff)
JD heliocentric, V-C magnitudes

----- EBFit result: -----
TminHJD = 2457246.44635
Error (1 sigma): +0.00010/-0.00011 (Bootstrapping), +0.00007/-0.00009 (Prayer bead), +0.00005/-0.00005 (LSM)
Error (95% CI): +0.00022/-0.00022 (Bootstrapping), +0.00009/-0.00013 (Prayer bead)
LSM: chi^2 = 198.7, n_freedom = 52

. . .

New observation 10/22/2015

LO And

Pavol A. Dubovsky, AO Kolonica

Celestron 11

Celestron 11
CCD+I; exp 60s; secondary minimum
C11 280/2800 + MII G2-1600 + DPV
Ensamble photometry with C-Munipack and MCV, Mean Comp: USNO-B1.0 1356-0528947; V=12.16, B=13.00, R=11.68 I=11.23 (Skiff)
JD heliocentric, V-C magnitudes

----- EBFit result: -----
TminHJD = 2457246.44655
Error (1 sigma): +0.00009/-0.00010 (Bootstrapping), +0.00002/-0.00004 (Prayer bead), +0.00006/-0.00006 (LSM)
Error (95% CI): +0.00018/-0.00018 (Bootstrapping), +0.00004/-0.00005 (Prayer bead)
LSM: chi^2 = 122.1, n_freedom = 47

. . .

New observation 8/26/2015

LO And

Filip Walter, Štefánik Observatory, Prague, Czech Republic

Buřt Zeiss MAK 350/3300 + Canon 350 D

. . .

New minimum 8/26/2015

LO And

Filip Walter, Štefánik Observatory, Prague, Czech Republic

Buřt Zeiss MAK 350/3300 + Canon 350 D

Buřt Zeiss MAK 350/3300 + Canon 350 D
Z1_C1_30,45s_1600iso_o55,0

Zpočátku vysoká oblačnost postupně vyjasnění. Montáž kupodivu jela velmi dobře, drift pole v hodinovém úhlu, RA neznatelně.

----- EBFit result: -----
Tmin = 2457260.51862
Error (1 sigma): +0.00015/-0.00015 (Bootstrapping), +0.00050/-0.00052 (Prayer bead), +0.00007/-0.00007 (LSM)
Error (95% CI): +0.00031/-0.00028 (Bootstrapping), +0.00063/-0.00077 (Prayer bead)
LSM: chi^2 = 1664.8, n_freedom = 386

. . .

New observation 9/22/2014

LO And

Pavol A. Dubovsky, AO Kolonica

Celestron 14

Celestron 14
CCD+V; exp 120s; binning 1x1
C14 356/3910 + MII G2-1600 + DPV
Ensamble photometry with C-Munipack and MCV, Mean Comp: USNO-B1.0 1356-0528947; V=12.16, B=13.00, R=11.68 I=11.23 (Skiff)
JD heliocentric, V-C magnitudes

----- EBFit result: -----
TminHJD = 2456917.55616
Error (1 sigma): +0.00009/-0.00009 (Bootstrapping), +0.00004/-0.00006 (Prayer bead), +0.00002/-0.00002 (LSM)
Error (95% CI): +0.00018/-0.00019 (Bootstrapping), +0.00007/-0.00008 (Prayer bead)
LSM: chi^2 = 786.9, n_freedom = 41

. . .

New minimum 8/19/2014

LO And

M. Magris, Opicina, Trieste, IT

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

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

----- EBFit result: -----
Tmin = 2456888.44803
Error (1 sigma): +0.00012/-0.00012 (Bootstrapping), +0.00025/-0.00019 (Prayer bead), +0.00006/-0.00006 (LSM)
Error (95% CI): +0.00023/-0.00022 (Bootstrapping), +0.00041/-0.00024 (Prayer bead)
LSM: chi^2 = 729.6, n_freedom = 192

. . .

New observation 9/19/2012

LO And

Pavol A. Dubovsky, AO Kolonica

photolense 400mm

photolense 400mm
TminHJD = 2456187.3034 +/- 0.0004; secondary minimum
CCD+V; exp 120s
photolense 400mm + MII G2-1600 + DPV
Ensamble photometry with C-Munipack and MCV, MainComp = HD220909, V=7.75, B-V=0.14 (TYCHO-2)
JD heliocentric, V-C magnitudes

. . .

New observation 9/11/2012

LO And

Pavol A. Dubovsky, AO Kolonica

photolense 400mm

photolense 400mm
TminHJD = 2456181.4067 +/- 0.0003
CCD+R; exp 120s
photolense 400mm + MII G2-1600 + DPV
Ensamble photometry with C-Munipack and MCV, MainComp = HD220909, V=7.75, B-V=0.14 (TYCHO-2)
JD heliocentric, V-C magnitudes

. . .

New observation 8/27/2012

LO And

Pavol A. Dubovsky, AO Kolonica

photolense 400mm

photolense 400mm
CCD+V; exp 120s

photolense 400mm + MII G2-1600 + DPV

Ensamble photometry with C-Munipack and MCV, MainComp = HD220909, V=7.75, B-V=0.14 (TYCHO-2)

JD heliocentric, V-C magnitudes

. . .

New minimum 8/14/2012

LO And

Vrašťák M, Pec pod Snežkou

Newton 150/750+CCD G2-1600, autopointer 80/400+G1-0300

Newton 150/750+CCD G2-1600, autopointer 80/400+G1-0300
jasno

. . .

New minimum 8/14/2012

LO And

Vrašťák M, Pec pod Snežkou

Newton 150/750+CCD G2-1600, autopointer 80/400+G1-0300

Newton 150/750+CCD G2-1600, autopointer 80/400+G1-0300
jasno

. . .

New minimum 8/14/2012

LO And

Vrašťák M, Pec pod Snežkou

Newton 150/750+CCD G2-1600, autopointer 80/400+G1-0300

Newton 150/750+CCD G2-1600, autopointer 80/400+G1-0300
jasno

. . .

New observation 8/14/2012

LO And

Vrašťák M, Pec pod Snežkou

Newton 150/750+CCD G2-1600, autopointer 80/400+G1-0300

. . .

New observation 8/14/2012

LO And

Vrašťák M, Pec pod Snežkou

Newton 150/750+CCD G2-1600, autopointer 80/400+G1-0300

. . .

New observation 8/14/2012

LO And

Vrašťák M, Pec pod Snežkou

Newton 150/750+CCD G2-1600, autopointer 80/400+G1-0300

. . .

New observation 8/5/2012

LO And

Kateřina Hoňková, HaP JP Ostrava

Newton 200/1200 + SBIG ST8-XME

. . .

New minimum 8/5/2012

LO And

Kateřina Hoňková, HaP JP Ostrava

Newton 200/1200 + SBIG ST8-XME

. . .

New observation 5/14/2012

LO And

Marek Chrastina, Brno, MonteBoo

Newton 620/2780 + SBIG ST-8XME + BVRI

. . .

New observation 5/14/2012

LO And

Marek Chrastina, Brno, MonteBoo

Newton 620/2780 + SBIG ST-8XME + BVRI

. . .

New observation 5/14/2012

LO And

Marek Chrastina, Brno, MonteBoo

Newton 620/2780 + SBIG ST-8XME + BVRI

. . .

New observation 9/27/2011

LO And

Kateřina Hoňková, HaP JP Ostrava

Newton 200/1200 + SBIG ST8-XME

Newton 200/1200 + SBIG ST8-XME
Exp - 20s
TminHJD = 2455831.3963 +/- 0.00014

. . .

New observation 9/27/2011

LO And

Kateřina Hoňková, HaP JP Ostrava

Newton 200/1200 + SBIG ST8-XME

Newton 200/1200 + SBIG ST8-XME
Exp - 30s
TminHJD = 2455831.3963 +/- 0.00014

. . .

New minimum 9/27/2011

LO And

Kateřina Hoňková, HaP JP Ostrava

Newton 200/1200 + SBIG ST8-XME

. . .

New minimum 9/27/2011

LO And

Kateřina Hoňková, HaP JP Ostrava

Newton 200/1200 + SBIG ST8-XME

. . .

New observation 8/16/2011

LO And

Pavol A. Dubovsky, AO Kolonica

photolense 400mm

photolense 400mm
TminHJD = 2455784.4147 +/- 0.0004; secondary minimum

CCD+V; exp 120s;

photolense 400mm + Meade DSI pro + DPV

Comp = TYC3637-00299-1, V=10.54, B-V=0.99 (TYCHO-2)

JD geocentric, V-C magnitudes

. . .

New observation 9/3/2009

LO And

Pavol A. Dubovsky, AO Kolonica

HUGO RL 265/1360

HUGO RL 265/1360
TminHJD = 2455065.3801 +/- 0.0001; secondary minimum

CCD+CV; exp 10s;

Hugo 265/1360mm + Meade DSI Pro + DPV

Comp = GSC 3637-0897 V=12.16 B-V=0.84 (Henden)

JD geocentric, V-C magnitudes

. . .

New observation 7/7/2009

LO And

Pavol A. Dubovsky, AO Kolonica

PÚPAVA RL 280/1500

PÚPAVA RL 280/1500
TminHJD = 2455017.4438 +/- 0.0003, secondary minimum

CCD+CV; exp 20s;

Pupava 280/1500 + Meade DSI Pro + DPV

Comp = GSC 3637-0897 V=12.16 B-V=0.84 (Henden)

JD geocentric, V-C magnitudes

. . .

New observation 1/22/2008

LO And

Luboš Brát, ALTAN.Observatory

RL 0.2m, f/10 + ST-8

RL 0.2m, f/10 + ST-8
TminHJD = 2453622.3637 +/- 0.0003
secondary minimum
CCD+R

. . .

New observation 1/21/2008

LO And

Pavol A. Dubovsky, AO Kolonica

HUGO RL 265/1360

HUGO RL 265/1360
TminHJD = 2454434.4167 +/- 0.0002

CCD+Clear; exp 10s

Hugo 265/1360mm + Meade + DPV

Moon

. . .

New observation 1/21/2008

LO And

Pavol A. Dubovsky, AO Kolonica

Pointer RL 300/2400

Pointer RL 300/2400
TminHJD = 2453966.4737 +/- 0.0002

CCD+V; exp 10s

Pointer 300/2400mm + focal reductor + Meade DSI Pro + DPV

. . .

New observation 1/21/2008

LO And

Pavol A. Dubovsky, AO Kolonica

HUGO RL 265/1360

HUGO RL 265/1360
TminHJD = 2453919.4922 +/- 0.0001
secondary minimum

CCD+V; exp 20s

Hugo + Meade DSI Pro + DPV

. . .

New observation 1/21/2008

LO And

Pavol A. Dubovsky, AO Kolonica

HUGO RL 265/1360

HUGO RL 265/1360
TminHJD = 2453935.4709 +/- 0.0001
secondary minimum

CCD+V; exp 20s

Hugo + Meade DSI Pro + DPV

. . .

New star 7/11/1997

LO And

admin

RA: 23h 27m 06.70s, DE: +45° 33' 22.00", MAG (max): 11.200 (V)

. . .

Recent

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Sjoerd Dufoer, Brussels - Heliport

Pavol A. Dubovsky, AO Kolonica

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Ehrenberger R., Crow-Observatory Vranová

Roman Ehrenberger, Crow-Observatory Vranová

Roman Ehrenberger, Crow-Observatory Vranová

Ehrenberger R., Crow-Observatory Vranová

Roman Ehrenberger, Crow-Observatory Vranová

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Ehrenberger R., Crow-Observatory Vranová

Roman Ehrenberger, Crow-Observatory Vranová

Červinka Ladislav, Dolní Bousov

Ladislav Červinka, Dolní Bousov

Sjoerd Dufoer, Brussels - Heliport

Pavol A. Dubovsky, AO Kolonica

Pavol A. Dubovsky, AO Kolonica

Filip Walter, Štefánik Observatory, Prague, Czech Republic

Filip Walter, Štefánik Observatory, Prague, Czech Republic

Pavol A. Dubovsky, AO Kolonica

Pavol A. Dubovsky, AO Kolonica

Pavol A. Dubovsky, AO Kolonica

Pavol A. Dubovsky, AO Kolonica

Pavol A. Dubovsky, AO Kolonica

Pavol A. Dubovsky, AO Kolonica

Pavol A. Dubovsky, AO Kolonica

Adrián Mokrý, Stefanik observatory, Prague

Adrián Mokrý, Stefanik observatory, Prague

Matúš Kamenec, Kolonica

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

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

Pavol A. Dubovsky, AO Kolonica

Pavol A. Dubovsky, AO Kolonica

Ladislav Červinka, Mladá Boleslav

Ladislav Červinka, Mladá Boleslav

Pavol A. Dubovsky, AO Kolonica

Pavol A. Dubovsky, AO Kolonica

Pavol A. Dubovsky, AO Kolonica

Pavol A. Dubovsky, AO Kolonica

Filip Walter, Štefánik Observatory, Prague, Czech Republic

Filip Walter, Štefánik Observatory, Prague, Czech Republic

Pavol A. Dubovsky, AO Kolonica

M. Magris, Opicina, Trieste, IT

Pavol A. Dubovsky, AO Kolonica

Pavol A. Dubovsky, AO Kolonica

Pavol A. Dubovsky, AO Kolonica

Vrašťák M, Pec pod Snežkou

Vrašťák M, Pec pod Snežkou

Vrašťák M, Pec pod Snežkou

Vrašťák M, Pec pod Snežkou

Vrašťák M, Pec pod Snežkou

Vrašťák M, Pec pod Snežkou

Kateřina Hoňková, HaP JP Ostrava

Kateřina Hoňková, HaP JP Ostrava

Marek Chrastina, Brno, MonteBoo

Marek Chrastina, Brno, MonteBoo

Marek Chrastina, Brno, MonteBoo