CzeV247 (Eclipsing binary)

RA: 20h 15m 20.82s, DE: +64° 58' 28.11" (303.8367375000, 64.9744749993)

CzeV: CzeV247, UsnoA: USNO-A2.0 1500-07298831, Ucac4: UCAC4 775-041963

Data:
  • Constellation: Dra
  • Variability type: EW?
  • Maximal brightness (Mag): 16.000 (c)
  • Minimum brightness (Mag): 16.500 (c)
  • Astrophysical interest: Wrong period
  • Created: 7/30/2014
  • Created by: admin
Show list of observations >>
Periodic elements:
  • Period (d): 0.282744800000000
  • Epoch (JD): 2458341.81570
  • Secondary Epoch (JD): 2458341.95707
Additional data:
  • Discoverer: Brát
  • Discovery year: 2011
  • Note: 
    http://var2.astro.cz/EN/obslog.php?obs_id=1180391432&projekt=%&star=CzeV247%20Dra
Change log:

2/24/2025, Filip Walter:

  • Astrophysical interest: Nothing → Wrong period
  • Secondary Epoch: Null → 2458341.9570724
  • Epoch: 0 → 2458341.8157
  • Period: 0 → 0.2827448

Chart
CzeV247
Source: The STScI Digitized Sky Survey
Number of observations

5 x

Number of observers

2 x

Last observed before

280 days

O-C diagram
Times of minima / maxima - including records from the original O-C gateway  
P: M = 2458341.8157 + 0.2827448 * E
S: M = 2458341.95707 + 0.2827448 * E
ID HJDmin UTCmin Epoch O-C (d) P/S Phot. band Observer Publication Note Instrument
Phase curve
Comments

Timeline