AR Lac (Eclipsing binary)

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

9/11/2019, 17:45 - 9/11/2019, 22:09 (UTC)

Data:
  • Observer: Urbaník M.
  • Created: 9/12/2019, 09:36 UTC
  • Station: Kysucká hvezdáreň
  • Instrument: SKY-WATCHER REF 80/520 + MII G2-8300
  • Photometric band: V
  • Time standard: GJD
  • Brightness in: Mag
  • Magnitude type: Relative (V−C)
Note:
CCD+V,exp.6 s,comp.HD209932,2x2 bin.
Determined minima
  • P: 2458738.352680 (9/11/2019, 20:27 UTC)
    HJDmin: 2458738.356210 +/- 0.000310  
    Heliocentric correction: 0.003530
    Note: 
    CCD+V,exp.6 s,comp.HD209932,2x2 bin.

----- EBFit result: -----
Tmin = 2458738.35268
Error (1 sigma): +0.00050/-0.00012 (Bootstrapping), +0.00052/-0.00030 (Prayer bead), +0.00005/-0.00005 (LSM)
Error (95% CI):  +0.00085/-0.00042 (Bootstrapping), +0.00069/-0.00046 (Prayer bead)
LSM: chi^2 = 5581.9, n_freedom = 171
Actions:
Light curve
Field identification - Star field chart
Chart - AR Lac, JD 2458738.23991
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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