NN Dra (Eclipsing binary)

RA: 13h 04m 02.98s, DE: +65° 15' 24.40" (196.0124166567, 65.2567777778)

Data:
  • Constellation: Dra
  • Variability type: EW
  • Maximal brightness (Mag): 12.340 (R)
  • Minimum brightness (Mag): 12.980 (R)
  • Brightness in secondary minimum (Mag): 12.900 (R)
  • Created: 9/4/2007
  • Created by: admin
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Periodic elements:
  • Period (d): 0.382879000000000
  • Epoch (JD): 51285.66900
  • Secondary Epoch (JD): 51285.86000
Chart
NN Dra
Source: The STScI Digitized Sky Survey
Number of observations

55 x

Number of observers

12 x

Last observed before

10 days

O-C diagram
Times of minima / maxima - including records from the original O-C gateway  
P: M = 2451285.669 + 0.382879 * E
S: M = 2451285.86 + 0.382879 * E
ID HJDmin UTCmin Epoch O-C (d) P/S Phot. band Observer Publication Note Instrument
Phase curve
Comments

Timeline