Recent

New minimum 3/19/2026

V0339 Boo

Martin Kobliha, Prostějov, 3/19/2026

APO TS 125/780; C2-9000; Sloan g, r, i

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New observation 3/19/2026

V0339 Boo

Martin Kobliha, Prostějov, 3/19/2026

APO TS 125/780; C2-9000; Sloan g, r, i

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New minimum 4/11/2024

V0339 Boo

CCD Sekce Štefánikova hvězdárna, Štefánik observatory, Prague

MARK Meade SCT 406/4060 + CCD SBIG ST10xme

MARK Meade SCT 406/4060 + CCD SBIG ST10xme
V1ST1O_45R_-10C_1x4_o3500

----- EBFit result: -----
Tmin = 2460411.45328
Error (1 sigma): +0.00032/-0.00032 (Bootstrapping), +0.00027/-0.00033 (Prayer bead), +0.00033/-0.00033 (LSM)
Error (95% CI): +0.00063/-0.00059 (Bootstrapping), +0.00037/-0.00045 (Prayer bead)
LSM: chi^2 = 241.0, n_freedom = 295

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New minimum 6/24/2022

V0339 Boo

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>Clear
#Exposure>30s ISO 800
#Target>V0339 Boo
#Position>
#MainComp>
#Source>
#Magnitude system>
#Time system>JD geocentric
#Reduction>Muniwin
#Comment>

----- EBFit result: -----
Tmin = 2459750.40991
Error (1 sigma): +0.00049/-0.00047 (Bootstrapping), +0.00023/-0.00032 (Prayer bead), +0.00016/-0.00016 (LSM)
Error (95% CI): +0.00094/-0.00099 (Bootstrapping), +0.00048/-0.00041 (Prayer bead)
LSM: chi^2 = 1531.4, n_freedom = 158

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New minimum 6/24/2022

V0339 Boo

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>Clear
#Exposure>30s ISO 800
#Target>V0339 Boo
#Position>
#MainComp>
#Source>
#Magnitude system>
#Time system>JD geocentric
#Reduction>Muniwin
#Comment>

----- EBFit result: -----
Tmin = 2459748.41744
Error (1 sigma): +0.00040/-0.00040 (Bootstrapping), +0.00016/-0.00014 (Prayer bead), +0.00021/-0.00021 (LSM)
Error (95% CI): +0.00084/-0.00081 (Bootstrapping), +0.00039/-0.00036 (Prayer bead)
LSM: chi^2 = 256.0, n_freedom = 70

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New observation 6/20/2022

V0339 Boo

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>Clear
#Exposure>30s ISO 800
#Target>V0339 Boo
#Position>
#MainComp>
#Source>
#Magnitude system>
#Time system>JD geocentric
#Reduction>Muniwin
#Comment>

----- EBFit result: -----
TminGJD = 2459750.41010
Error (1 sigma): +0.00054/-0.00046 (Bootstrapping), +0.00024/-0.00025 (Prayer bead), +0.00016/-0.00016 (LSM)
Error (95% CI): +0.00101/-0.00092 (Bootstrapping), +0.00053/-0.00041 (Prayer bead)
LSM: chi^2 = 1458.5, n_freedom = 146
secondary minimum

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New observation 6/18/2022

V0339 Boo

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>Clear
#Exposure>30s ISO 800
#Target>V0339 Boo
#Position>
#MainComp>
#Source>
#Magnitude system>
#Time system>JD geocentric
#Reduction>Muniwin
#Comment>

----- EBFit result: -----
TminGJD = 2459748.41743
Error (1 sigma): +0.00040/-0.00041 (Bootstrapping), +0.00017/-0.00014 (Prayer bead), +0.00020/-0.00020 (LSM)
Error (95% CI): +0.00078/-0.00076 (Bootstrapping), +0.00038/-0.00035 (Prayer bead)
LSM: chi^2 = 256.0, n_freedom = 69

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New minimum 6/17/2021

V0339 Boo

CCD Sekce Štefánikova hvězdárna, Štefánik observatory, Prague

MARK Meade SCT 406/4060 + CCD SBIG ST10XME

MARK Meade SCT 406/4060 + CCD SBIG ST10XME
Přechody oblačnosti

----- EBFit result: -----
Tmin = 2459342.43247
Error (1 sigma): +0.00070/-0.00064 (Bootstrapping), +0.00020/-0.00021 (Prayer bead), +0.00042/-0.00042 (LSM)
Error (95% CI): +0.00160/-0.00107 (Bootstrapping), +0.00056/-0.00037 (Prayer bead)
LSM: chi^2 = 64.3, n_freedom = 47

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New minimum 2/5/2021

V0339 Boo

Filip Walter, Štefánik Observatory, Prague, Czech Republic

Skywatcher REF 102/600 + DSLR Canon 1000D

Skywatcher REF 102/600 + DSLR Canon 1000D
V2_C9_90.800C3

Jasno, Měsíc, později nasouvání vysoké oblačnosti
Poruchy ovládání kopule.

----- EBFit result: -----
Tmin = 2458977.45830
Error (1 sigma): +0.00099/-0.00088 (Bootstrapping), +0.00045/-0.00040 (Prayer bead), +0.00110/-0.00110 (LSM)
Error (95% CI): +0.00199/-0.00167 (Bootstrapping), +0.00111/-0.00076 (Prayer bead)
LSM: chi^2 = 44.6, n_freedom = 60

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New observation 2/5/2021

V0339 Boo

Filip Walter, Štefánik Observatory, Prague, Czech Republic

Skywatcher REF 102/600 + DSLR Canon 1000D

Skywatcher REF 102/600 + DSLR Canon 1000D
V2_C9_90.800C3

Jasno, Měsíc, později nasouvání vysoké oblačnosti
Poruchy ovládání kopule.

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New minimum 4/17/2020

V0339 Boo

Sjoerd Dufoer, Brussels - Heliport

Vixen 20cm VMC200L

Vixen 20cm VMC200L

----- EBFit result: -----
Tmin = 2458956.40413
Error (1 sigma): +0.00062/-0.00061 (Bootstrapping), +0.00038/-0.00039 (Prayer bead), +0.00054/-0.00054 (LSM)
Error (95% CI): +0.00118/-0.00121 (Bootstrapping), +0.00066/-0.00062 (Prayer bead)
LSM: chi^2 = 184.8, n_freedom = 165

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New minimum 2/25/2019

V0339 Boo

Walter F., Štefánik Observatory, Prague, Czech Republic

CZ Mirotar LNS 180/1000 + DSLR CANON 350D

CZ Mirotar LNS 180/1000 + DSLR CANON 350D
D2_C4_60.1600

----- EBFit result: -----
Tmin = 2458178.53741
Error (1 sigma): +0.00075/-0.00076 (Bootstrapping), +0.00027/-0.00031 (Prayer bead), +0.00080/-0.00080 (LSM)
Error (95% CI): +0.00144/-0.00149 (Bootstrapping), +0.00040/-0.00053 (Prayer bead)
LSM: chi^2 = 80.1, n_freedom = 88

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New minimum 2/25/2019

V0339 Boo

Walter F., Štefánik Observatory, Prague, Czech Republic

CZ Mirotar LNS 180/1000 + DSLR CANON 350D

CZ Mirotar LNS 180/1000 + DSLR CANON 350D
D2_C4_60.1600

Canon bayer filter G

----- EBFit result: -----
Tmin = 2458178.53735
Error (1 sigma): +0.00086/-0.00087 (Bootstrapping), +0.00040/-0.00044 (Prayer bead), +0.00095/-0.00095 (LSM)
Error (95% CI): +0.00149/-0.00174 (Bootstrapping), +0.00087/-0.00096 (Prayer bead)
LSM: chi^2 = 58.8, n_freedom = 77

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New minimum 5/2/2018

V0339 Boo

Nosáľ P., Vígľaš

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

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

----- EBFit result: -----
Tmin = 2458223.53896
Error (1 sigma): +0.00114/-0.00120 (Bootstrapping), +0.00038/-0.00064 (Prayer bead), +0.00021/-0.00021 (LSM)
Error (95% CI): +0.00203/-0.00240 (Bootstrapping), +0.00110/-0.00167 (Prayer bead)
LSM: chi^2 = 2828.5, n_freedom = 91

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New minimum 6/12/2016

V0339 Boo

Nosáľ P., Vígľaš

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

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

----- EBFit result: -----
Tmin = 2457524.39813
Error (1 sigma): +0.00040/-0.00044 (Bootstrapping), +0.00029/-0.00045 (Prayer bead), +0.00024/-0.00024 (LSM)
Error (95% CI): +0.00074/-0.00096 (Bootstrapping), +0.00067/-0.00069 (Prayer bead)
LSM: chi^2 = 156.2, n_freedom = 59

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New minimum 4/27/2015

V0339 Boo

Vrašťák M, Liptovská Štiavnica, Slovakia

0,24-m f/5 RL+CCD G2-1600, pointer 80/400+G1-0300

0,24-m f/5 RL+CCD G2-1600, pointer 80/400+G1-0300
----- EBFit result: -----
Tmin = 2457138.36187
Error (1 sigma): +0.00036/-0.00035 (Bootstrapping), +0.00021/-0.00022 (Prayer bead), +0.00026/-0.00026 (LSM)
Error (95% CI): +0.00068/-0.00070 (Bootstrapping), +0.00034/-0.00035 (Prayer bead)
LSM: chi^2 = 59.7, n_freedom = 34

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New minimum 4/27/2015

V0339 Boo

Vrašťák M, Liptovská Štiavnica, Slovakia

0,24-m f/5 RL+CCD G2-1600, pointer 80/400+G1-0300

0,24-m f/5 RL+CCD G2-1600, pointer 80/400+G1-0300
----- EBFit result: -----
Tmin = 2457138.36258
Error (1 sigma): +0.00031/-0.00033 (Bootstrapping), +0.00009/-0.00013 (Prayer bead), +0.00025/-0.00025 (LSM)
Error (95% CI): +0.00068/-0.00069 (Bootstrapping), +0.00017/-0.00016 (Prayer bead)
LSM: chi^2 = 59.6, n_freedom = 37

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New minimum 4/27/2015

V0339 Boo

Vrašťák M, Liptovská Štiavnica, Slovakia

0,24-m f/5 RL+CCD G2-1600, pointer 80/400+G1-0300

0,24-m f/5 RL+CCD G2-1600, pointer 80/400+G1-0300
----- EBFit result: -----
Tmin = 2457138.36247
Error (1 sigma): +0.00053/-0.00046 (Bootstrapping), +0.00020/-0.00020 (Prayer bead), +0.00028/-0.00028 (LSM)
Error (95% CI): +0.00098/-0.00090 (Bootstrapping), +0.00042/-0.00036 (Prayer bead)
LSM: chi^2 = 81.4, n_freedom = 40

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New minimum 3/26/2015

V0339 Boo

Jozef Suchan, Polomka

SW Apo ED 80/600, NWT 254/1200

SW Apo ED 80/600, NWT 254/1200
Fotene cez NWT + CCD s KAF402
Pointovane cez APO + G1-1400
Podmieky velmi dobre.
Minimum nastalo o 41min. skor.

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New star 9/3/2007

V0339 Boo

admin

RA: 15h 48m 35.03s, DE: +43° 28' 45.00", MAG (max): 10.700 (R)

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