EX Leo (Eclipsing binary)

RA: 10h 45m 06.77s, DE: +16° 20' 15.70" (161.2782083333, 16.3376944441)

4/5/2023, 20:46 - 4/6/2023, 01:00 (UTC)

Data:
  • Observer: Urbaník M.
  • Created: 4/12/2023, 12:42
  • Station: Kysucká hvezdáreň
  • Instrument: MEGREZ 88 FD 88/498 + MII G2-8300
  • Photometric band: B
  • Time standard: Gjd
  • Brightness in: Mag
Note:
CCD+B,exp.35s., comp. HD93430,2x2.Star
HD93430, Visual magnitude: 8.980
Colour index B-V: 0.571
Blue magnitude: 9.551
Magnitude I: 8.4
Magnitude G: 8.843
Magnitude BP: 9.131
Magnitude RP: 8.38
Determined minima
  • S: 2460040.41274 (4/5/2023, 21:54)
    HJDmin: 2460040.41717 +/- 0.00052  
    Heliocentric correction: 0.00443
    Note: 
    CCD+B,exp.35s., comp. HD93430,2x2.Star
HD93430, Visual magnitude: 8.980
Colour index B-V: 0.571
Blue magnitude: 9.551
Magnitude I: 8.4
Magnitude G: 8.843
Magnitude BP: 9.131
Magnitude RP: 8.38

----- EBFit result: -----
Tmin = 2460040.41274
Error (1 sigma): +0.00057/-0.00046 (Bootstrapping), +0.00031/-0.00037 (Prayer bead), +0.00020/-0.00020 (LSM)
Error (95% CI):  +0.00105/-0.00091 (Bootstrapping), +0.00053/-0.00043 (Prayer bead)
LSM: chi^2 = 251.0, n_freedom = 53
  • S: 2460040.41225 (4/5/2023, 21:53)
    HJDmin: 2460040.41668 +/- 0.00064  
    Heliocentric correction: 0.00443
    Note: 
    CCD+V,exp.25s., comp. HD93430,2x2.Star
HD93430, Visual magnitude: 8.980
Colour index B-V: 0.571
Blue magnitude: 9.551
Magnitude I: 8.4
Magnitude G: 8.843
Magnitude BP: 9.131
Magnitude RP: 8.38

----- EBFit result: -----
Tmin = 2460040.41225
Error (1 sigma): +0.00061/-0.00067 (Bootstrapping), +0.00025/-0.00038 (Prayer bead), +0.00040/-0.00040 (LSM)
Error (95% CI):  +0.00122/-0.00116 (Bootstrapping), +0.00083/-0.00081 (Prayer bead)
LSM: chi^2 = 82.9, n_freedom = 27
  • S: 2460040.41028 (4/5/2023, 21:50)
    HJDmin: 2460040.41471 +/- 0.00134  
    Heliocentric correction: 0.00443
    Note: 
    CCD+R,exp.16s., comp. HD93430,2x2.Star
HD93430, Visual magnitude: 8.980
Colour index B-V: 0.571
Blue magnitude: 9.551
Magnitude I: 8.4
Magnitude G: 8.843
Magnitude BP: 9.131
Magnitude RP: 8.38

----- EBFit result: -----
Tmin = 2460040.41028
Error (1 sigma): +0.00096/-0.00172 (Bootstrapping), +0.00043/-0.00114 (Prayer bead), +0.00024/-0.00024 (LSM)
Error (95% CI):  +0.00202/-0.00273 (Bootstrapping), +0.00089/-0.00159 (Prayer bead)
LSM: chi^2 = 221.2, n_freedom = 16
  • S: 2460040.41366 (4/5/2023, 21:55)
    HJDmin: 2460040.41809 +/- 0.00065  
    Heliocentric correction: 0.00443
    Note: 
    CCD+I,exp.20s., comp. HD93430,2x2.Star
HD93430, Visual magnitude: 8.980
Colour index B-V: 0.571
Blue magnitude: 9.551
Magnitude I: 8.4
Magnitude G: 8.843
Magnitude BP: 9.131
Magnitude RP: 8.38

----- EBFit result: -----
Tmin = 2460040.41366
Error (1 sigma): +0.00072/-0.00058 (Bootstrapping), +0.00029/-0.00030 (Prayer bead), +0.00054/-0.00054 (LSM)
Error (95% CI):  +0.00149/-0.00111 (Bootstrapping), +0.00065/-0.00088 (Prayer bead)
LSM: chi^2 = 69.0, n_freedom = 46
Actions:
Light curve
Neighborhood of the object, comparison and check stars
Chart - EX Leo, JD 2460040.36566
Comments