GQ Dra (Eclipsing binary)

RA: 17h 25m 29.44s, DE: +51° 29' 35.10" (261.3726666567, 51.4930833330)

10/8/2020, 17:34 - 10/8/2020, 20:53 (UTC)

Data:
  • Observer: Urbaník M.
  • Created: 10/9/2020, 12:40
  • Station: Kysucká hvezdáreň
  • Instrument: SKY-WATCHER NWT 150/750 + MII G2-8300
  • Photometric band: B
  • Time standard: Gjd
  • Brightness in: Mag
Note:
CCD+B,exp.34 s,comp. HD157893,2x2.
Determined minima
  • P: 2459131.29240 (10/8/2020, 19:01)
    HJDmin: 2459131.29147 +/- 0.00027  
    Heliocentric correction: -0.00093
    Note: 
    CCD+B,exp.34 s,comp. HD157893,2x2.

----- EBFit result: -----
Tmin = 2459131.29240
Error (1 sigma): +0.00028/-0.00027 (Bootstrapping), +0.00009/-0.00008 (Prayer bead), +0.00015/-0.00015 (LSM)
Error (95% CI):  +0.00051/-0.00053 (Bootstrapping), +0.00022/-0.00019 (Prayer bead)
LSM: chi^2 = 214.7, n_freedom = 66
  • P: 2459131.29316 (10/8/2020, 19:02)
    HJDmin: 2459131.29223 +/- 0.00025  
    Heliocentric correction: -0.00093
    Note: 
    CCD+V,exp.25 s,comp. HD157893,2x2.

----- EBFit result: -----
Tmin = 2459131.29316
Error (1 sigma): +0.00025/-0.00025 (Bootstrapping), +0.00014/-0.00014 (Prayer bead), +0.00014/-0.00014 (LSM)
Error (95% CI):  +0.00049/-0.00049 (Bootstrapping), +0.00023/-0.00023 (Prayer bead)
LSM: chi^2 = 221.2, n_freedom = 60
  • P: 2459131.29383 (10/8/2020, 19:03)
    HJDmin: 2459131.29290 +/- 0.00030  
    Heliocentric correction: -0.00093
    Note: 
    CCD+R,exp.16 s,comp. HD157893,2x2.

----- EBFit result: -----
Tmin = 2459131.29383
Error (1 sigma): +0.00029/-0.00031 (Bootstrapping), +0.00014/-0.00019 (Prayer bead), +0.00012/-0.00012 (LSM)
Error (95% CI):  +0.00059/-0.00058 (Bootstrapping), +0.00033/-0.00028 (Prayer bead)
LSM: chi^2 = 420.7, n_freedom = 59
  • P: 2459131.29292 (10/8/2020, 19:01)
    HJDmin: 2459131.29199 +/- 0.00054  
    Heliocentric correction: -0.00093
    Note: 
    CCD+I,exp.20 s,comp. HD157893,2x2.

----- EBFit result: -----
Tmin = 2459131.29292
Error (1 sigma): +0.00049/-0.00060 (Bootstrapping), +0.00019/-0.00031 (Prayer bead), +0.00031/-0.00031 (LSM)
Error (95% CI):  +0.00104/-0.00099 (Bootstrapping), +0.00040/-0.00049 (Prayer bead)
LSM: chi^2 = 108.9, n_freedom = 44
Actions:
Light curve
Neighborhood of the object, comparison and check stars
Chart - GQ Dra, JD 2459131.23254
Comments