PQ Dra (Eclipsing binary)

RA: 14h 30m 33.86s, DE: +55° 33' 13.50" (217.6410833333, 55.5537500000)

Data:
  • Constellation: Dra
  • Variability type: EB
  • Maximal brightness (Mag): 13.900 (R)
  • Minimum brightness (Mag): 14.500 (R)
  • Brightness in secondary minimum (Mag): 14.050 (R)
  • Created: 3/28/2009
  • Created by: admin
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Periodic elements:
  • Period (d): 0.320941500000000
  • Epoch (JD): 51393.77900
  • Secondary Epoch (JD): 51393.93947
Chart
PQ Dra
Source: The STScI Digitized Sky Survey
Number of observations

7 x

Number of observers

4 x

Last observed before

10 days

O-C diagram
Times of minima / maxima - including records from the original O-C gateway  
P: M = 2451393.779 + 0.3209415 * E
S: M = 2451393.93947 + 0.3209415 * E
ID HJDmin UTCmin Epoch O-C (d) P/S Phot. band Observer Publication Note Instrument
Phase curve
Comments

Timeline