Y Cyg (Eclipsing binary)

RA: 20h 52m 03.58s, DE: +34° 39' 27.50" (313.0149166567, 34.6576388889)

Tic: TIC 236046394, Gsc: GSC 02696-03486, Hd: HD 198846, Tyc: TYC 2696-3486-1, Gcvs: Y Cyg, TwoMass: 2MASS J20520357+3439273, Gaia: Gaia DR3 1869256701670871168

Data:

  • Constellation: Cyg
  • Variability type: EA
  • Maximal brightness (Mag): 7.300 (V)
  • Minimum brightness (Mag): 7.900 (V)
  • Brightness in secondary minimum (Mag): 7.750 (V)
  • Astrophysical interest: Excentric orbit of the binary, Apsidal motion
  • Created: 4/9/2007
  • Created by: admin
Periodic elements:

  • Period (d): 2.996332000000000
  • Epoch (HJD): 48987.02400
  • Secondary Epoch (HJD): 48988.52200
Change log:

1/21/2026, Filip Walter:

  • Name: Y → Y Cyg
  • Astrophysical interest: Nothing → Excentric orbit of the binary, Apsidal motion
  • Alternative designation: → Tic: TIC 236046394, Gsc: GSC 02696-03486, Hd: HD 198846, Tyc: TYC 2696-3486-1, Gcvs: Y Cyg, TwoMass: 2MASS J20520357+3439273, Gaia: Gaia DR3 1869256701670871168

Number of observations

8 x

Number of observers

3 x

Last observed before

5978 days

O-C diagram
Times of minima / maxima - including records from the original O-C gateway  
P: M = 2448987.024 + 2.996332 * E
S: M = 2448988.522 + 2.996332 * E
ID HJDmin UTCmin Epoch O-C (d) P/S Phot. band Observer Publication Note Instrument
Phase curve
Comments

Timeline