AR Lac (Eclipsing binary)

RA: 22h 08m 40.82s, DE: +45° 44' 32.10" (332.1700833283, 45.7422499997)

Data:
  • Constellation: Lac
  • Variability type: EA
  • Maximal brightness (Mag): 6.080 (V)
  • Minimum brightness (Mag): 6.770 (V)
  • Brightness in secondary minimum (Mag): 6.430 (V)
  • Created: 6/1/1996
  • Created by: admin
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Periodic elements:
  • Period (d): 1.983212000000000
  • Epoch (HJD): 15300.05900
  • Secondary Epoch (HJD): 15301.05000
Chart
AR Lac
Source: The STScI Digitized Sky Survey, FoV: 15 x 15 arcmin
Number of observations

28 x

Number of observers

8 x

Last observed before

1 days

O-C diagram
Times of minima / maxima - including records from the original O-C gateway  
P: M = 2415300.059 + 1.983212 * E
S: M = 2415301.05 + 1.983212 * E
ID HJDmin Error (+/-) UTCmin Epoch O-C (d) P/S Phot. band Observer Publication Note Instrument
Phase curve
Comments

Timeline