EM Lac (Eclipsing binary)

RA: 22h 23m 54.81s, DE: +54° 01' 09.60" (335.9783749950, 54.0193333327)

Data:
  • Constellation: Lac
  • Variability type: EW
  • Maximal brightness (Mag): 12.500 (V)
  • Minimum brightness (Mag): 13.090 (V)
  • Brightness in secondary minimum (Mag): 13.090 (V)
  • Created: 4/9/2007
  • Created by: admin
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Periodic elements:
  • Period (d): 0.389135100000000
  • Epoch (HJD): 17793.43800
  • Secondary Epoch (HJD): 17793.63300
Chart
EM Lac
Source: The STScI Digitized Sky Survey
Number of observations

53 x

Number of observers

4 x

Last observed before

957 days

O-C diagram
Times of minima / maxima - including records from the original O-C gateway  
P: M = 2417793.438 + 0.3891351 * E
S: M = 2417793.633 + 0.3891351 * E
ID HJDmin Error (+/-) UTCmin Epoch O-C (d) P/S Phot. band Observer Publication Note Instrument
Phase curve
Comments

Timeline