EF Dra (Eclipsing binary)

RA: 18h 05m 30.40s, DE: +69° 45' 16.00" (271.3766666617, 69.7544444444)

4/7/2026, 18:46 - 4/8/2026, 02:58 (UTC)

Data:
  • Observer: Martin Kobliha
  • Created: 4/8/2026, 06:34
  • Station: Prostějov
    Lat: +49°, Long: +17°
  • Instrument: APO TS 125/780; C2-9000; Sloan g, r, i
  • Photometric band: Sg
  • Time standard: Hjd
  • Brightness in: Mag
Determined minima
  • P: 2461138.31389 (4/7/2026, 19:32)
    HJDmin: 2461138.31375 +/- 0.00037  
    Heliocentric correction: -0.00015
  • S: 2461138.52259 (4/8/2026, 00:32)
    HJDmin: 2461138.52244 +/- 0.00035  
    Heliocentric correction: -0.00015
Actions:
Light curve
Neighborhood of the object, comparison and check stars
Chart - EF Dra, JD 2461138.28240
Comments