AR Lac (Eclipsing binary)

RA: 22h 08m 40.82s, DE: +45° 44' 32.10" (332.1700833283, 45.7422499997)

9/12/2019, 17:39 - 9/12/2019, 22:03 (UTC)

Data:
  • Observer: Urbaník M.
  • Created: 9/14/2019, 11:50 UTC
  • Station: Kysucká hvezdáreň
  • Instrument: SKY-WATCHER REF 80/520 + MII G2-8300
  • Photometric band: I
  • Time standard: GJD
  • Brightness in: Mag
  • Magnitude type: Relative (V−C)
Note:
CCD+I,exp.5 s,comp.HD209932,2x2 bin.
Determined minima
  • S: 2458739.346270 (9/12/2019, 20:18 UTC)
    HJDmin: 2458739.349810 +/- 0.000400  
    Heliocentric correction: 0.003540
    Note: 
    CCD+I,exp.5 s,comp.HD209932,2x2 bin.

----- EBFit result: -----
Tmin = 2458739.34627
Error (1 sigma): +0.00045/-0.00035 (Bootstrapping), +0.00143/-0.00125 (Prayer bead), +0.00014/-0.00014 (LSM)
Error (95% CI):  +0.00085/-0.00072 (Bootstrapping), +0.00234/-0.00278 (Prayer bead)
LSM: chi^2 = 1801.5, n_freedom = 169
Actions:
Light curve
Field identification - Star field chart
Chart - AR Lac, JD 2458739.23595
Field identification - Explicitly named stars

No comparison or check stars are explicitly listed for this observation. They should be marked in the star field chart.

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