AH Cep (Eclipsing binary)

RA: 22h 47m 52.94s, DE: +65° 03' 43.80" (341.9705833283, 65.0621666667)

Tic: TIC 377506471, Gsc: GSC 04273-00857, Hd: HD 216014, Tyc: TYC 4273-857-1, Gcvs: AH Cep, TwoMass: 2MASS J22475293+6503438, Gaia: Gaia DR3 2211503747619173376

Data:

  • Constellation: Cep
  • Variability type: EB
  • Maximal brightness (Mag): 6.780 (V)
  • Minimum brightness (Mag): 7.070 (V)
  • Brightness in secondary minimum (Mag): 7.030 (V)
  • Astrophysical interest: Light time effect (LTE)
  • Created: 6/1/1996
  • Created by: admin
Periodic elements:

  • Period (d): 1.774741000000000
  • Epoch (HJD): 34989.41400
  • Secondary Epoch (HJD): 34990.30100
Change log:

1/21/2026, Filip Walter:

  • Name: AH → AH Cep
  • Alternative designation: → Tic: TIC 377506471, Gsc: GSC 04273-00857, Hd: HD 216014, Tyc: TYC 4273-857-1, Gcvs: AH Cep, TwoMass: 2MASS J22475293+6503438, Gaia: Gaia DR3 2211503747619173376

11/19/2025, Filip Walter:

  • Astrophysical interest: Light time effect (LTE), Apsidal motion → Light time effect (LTE)
  • Astrophysical interest: Light time effect (LTE) → Light time effect (LTE), Apsidal motion
  • Astrophysical interest: Nothing → Light time effect (LTE)

Number of observations

29 x

Number of observers

9 x

Last observed before

71 days

O-C diagram
Times of minima / maxima - including records from the original O-C gateway  
P: M = 2434989.414 + 1.774741 * E
S: M = 2434990.301 + 1.774741 * E
ID HJDmin Error (+/-) UTCmin Epoch O-C (d) P/S Phot. band Observer Publication Note Instrument
Phase curve
Comments

Timeline