AI Dra (Eclipsing binary)

RA: 16h 56m 18.15s, DE: +52° 41' 54.40" (254.0756249950, 52.6984444441)

Data:
  • Constellation: Dra
  • Variability type: EA
  • Maximal brightness (Mag): 7.050 (V)
  • Minimum brightness (Mag): 8.090 (V)
  • Brightness in secondary minimum (Mag): 7.160 (V)
  • Created: 6/1/1996
  • Created by: admin
Show list of observations >>
Periodic elements:
  • Period (d): 1.198816000000000
  • Epoch (HJD): 43291.64300
  • Secondary Epoch (HJD): 43292.24200
Chart
AI Dra
Source: The STScI Digitized Sky Survey, FoV: 15 x 15 arcmin
Number of observations

17 x

Number of observers

11 x

Last observed before

12 days

O-C diagram
Times of minima / maxima - including records from the original O-C gateway  
P: M = 2443291.643 + 1.198816 * E
S: M = 2443292.242 + 1.198816 * E
ID HJDmin Error (+/-) UTCmin Epoch O-C (d) P/S Phot. band Observer Publication Note Instrument
Phase curve
Comments

Timeline