CO Lac (Eclipsing binary)

RA: 22h 46m 30.00s, DE: +56° 49' 31.60" (341.6249999900, 56.8254444438)

Data:

  • Constellation: Lac
  • Variability type: EA
  • Maximal brightness (Mag): 10.280 (V)
  • Minimum brightness (Mag): 10.890 (V)
  • Brightness in secondary minimum (Mag): 10.790 (V)
  • Astrophysical interest: Apsidal motion
  • Created: 4/9/2007
  • Created by: admin
Periodic elements:

  • Period (d): 1.542207500000000
  • Epoch (JD): 27534.07280
  • Secondary Epoch (JD): 27534.84390
Change log:

11/23/2025, Filip Walter:

  • Astrophysical interest: Nothing → Apsidal motion

Number of observations

140 x

Number of observers

14 x

Last observed before

14 days

O-C diagram
Times of minima / maxima - including records from the original O-C gateway  
P: M = 2427534.0728 + 1.5422075 * E
S: M = 2427534.8439 + 1.5422075 * E
ID HJDmin UTCmin Epoch O-C (d) P/S Phot. band Observer Publication Note Instrument
Phase curve
Comments

Timeline