EF CVn (Eclipsing binary)

RA: 13h 36m 38.49s, DE: +28° 11' 39.00" (204.1603750000, 28.1941666663)

Ztf: ZTF J133638.36+281139.8, Gcvs: EF CVn, Gsc: GSC 02004-00784, TwoMass: 2MASS J13363841+2811404, Nsvs: NSVS 7679631, Crts: CRTS J133638.3+281139, Tic: TIC 207343686, Gaia: Gaia DR3 1448960547916014080

Data:

  • Constellation: CVn
  • Variability type: EW
  • Maximal brightness (Mag): 13.100 (c)
  • Minimum brightness (Mag): 13.500 (c)
  • Brightness in secondary minimum (Mag): 13.500 (c)
  • Astrophysical interest: Light time effect (LTE)
  • Created: 8/13/2002
  • Created by: admin
Periodic elements:

  • Period (d): 0.272050000000000
  • Epoch (HJD): 52308.48600
  • Secondary Epoch (HJD): 52308.62200
Change log:

2/16/2026, Filip Walter:

  • Astrophysical interest: Nothing → Light time effect (LTE)
  • Alternative designation: → Ztf: ZTF J133638.36+281139.8, Gcvs: EF CVn, Gsc: GSC 02004-00784, TwoMass: 2MASS J13363841+2811404, Nsvs: NSVS 7679631, Crts: CRTS J133638.3+281139, Tic: TIC 207343686, Gaia: Gaia DR3 1448960547916014080

Number of observations

19 x

Number of observers

3 x

Last observed before

3 days

O-C diagram
Times of minima / maxima - including records from the original O-C gateway  
P: M = 2452308.486 + 0.27205 * E
S: M = 2452308.622 + 0.27205 * E
ID HJDmin Error (+/-) UTCmin Epoch O-C (d) P/S Phot. band Observer Publication Note Instrument
Phase curve
Comments

Timeline