BW Dra (Eclipsing binary)

RA: 15h 11m 50.11s, DE: +61° 51' 41.30" (227.9587916617, 61.8614722222)

Data:
  • Constellation: Dra
  • Variability type: EW
  • Maximal brightness (Mag): 8.610 (V)
  • Minimum brightness (Mag): 9.080 (V)
  • Brightness in secondary minimum (Mag): 9.020 (V)
  • Created: 6/1/1996
  • Created by: admin
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Periodic elements:
  • Period (d): 0.292165000000000
  • Epoch (HJD): 40362.87500
  • Secondary Epoch (HJD): 40363.02100
Chart
BW Dra
Source: The STScI Digitized Sky Survey
Number of observations

113 x

Number of observers

17 x

Last observed before

598 days

O-C diagram
Times of minima / maxima - including records from the original O-C gateway  
P: M = 2440362.875 + 0.292165 * E
S: M = 2440363.021 + 0.292165 * E
ID HJDmin Error (+/-) UTCmin Epoch O-C (d) P/S Phot. band Observer Publication Note Instrument
Phase curve
Comments

Timeline