XY Leo (Eclipsing binary)

RA: 10h 01m 40.43s, DE: +17° 24' 32.70" (150.4184583233, 17.4090833333)

Data:

  • Constellation: Leo
  • Variability type: EW
  • Maximal brightness (Mag): 9.450 (V)
  • Minimum brightness (Mag): 9.930 (V)
  • Brightness in secondary minimum (Mag): 9.800 (V)
  • Astrophysical interest: Light time effect (LTE)
  • Created: 6/1/1996
  • Created by: admin
Periodic elements:

  • Period (d): 0.284102900000000
  • Epoch (HJD): 45074.49300
  • Secondary Epoch (HJD): 45074.63500
Change log:

3/1/2026, Filip Walter:

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

Number of observations

38 x

Number of observers

15 x

Last observed before

3 days

O-C diagram
Times of minima / maxima - including records from the original O-C gateway  
P: M = 2445074.493 + 0.2841029 * E
S: M = 2445074.635 + 0.2841029 * E
ID HJDmin Error (+/-) UTCmin Epoch O-C (d) P/S Phot. band Observer Publication Note Instrument
Phase curve
Comments

Timeline