CY Lac (Eclipsing binary)

RA: 22h 13m 08.71s, DE: +54° 33' 34.31" (333.2862900000, 54.5595300000)

AsasSnV: ASASSN-V J221308.70+543334.9, Gaia: Gaia DR3 2005436130218854912, Gcvs: CY Lac, Gsc: GSC 03973-00578, Tic: TIC 329868103, TwoMass: 2MASS J22130870+5433342, Tyc: TYC 3973-578-1, Other: IOMC 3973000080, Other: SVS 924

Data:
  • Constellation: Lac
  • Variability type: EA/D
  • Maximal brightness (Mag): 11.500 (p)
  • Minimum brightness (Mag): 11.800 (p)
  • Brightness in secondary minimum (Mag): 11.500 (p)
  • Created: 6/1/1996
  • Created by: admin
Periodic elements:
  • Period (d): 8.360525000000000
  • Epoch (HJD): 28746.21900
  • Secondary Epoch (HJD): 28749.21900
Change log:

10/21/2026, Filip Walter:

  • Variability type: EA → EA/D
  • Photometric band: P → p
  • Declination: 54.5595277778 → 54.55953
  • Right ascension: 333.2862916567 → 333.28629
  • Name: CY → CY Lac
  • CI: Tyc: Null → TYC 3973-578-1
  • CI: TwoMass: Null → 2MASS J22130870+5433342
  • CI: Tic: Null → TIC 329868103
  • CI: Other: Null → IOMC 3973000080, SVS 924
  • CI: Gsc: Null → GSC 03973-00578
  • CI: Gcvs: Null → CY Lac
  • CI: Gaia: Null → Gaia DR3 2005436130218854912
  • CI: AsasSnV: Null → ASASSN-V J221308.70+543334.9

Chart
CY Lac
Source: The STScI Digitized Sky Survey, FoV: 15 x 15 arcmin
Number of observations

0 x

Number of observers

0 x

Last observed before

-

O-C diagram
Times of minima / maxima - including records from the original O-C gateway  
P: M = 2428746.219 + 8.360525 * E
S: M = 2428749.219 + 8.360525 * E
ID HJDmin Error (+/-) UTCmin Epoch O-C (d) P/S Phot. band Observer Publication Note Instrument
Comments

Timeline