CzeV251 (Eclipsing binary)

RA: 16h 01m 56.42s, DE: +85° 44' 27.05" (240.4850874900, 85.7408472219)

CzeV: CzeV251, Gsc: GSC 4651-1079, Ucac4: UCAC4 879-004307, SvkV: SvkV22, UsnoB: USNO-B1.0 1757-0028314

Data:
  • Constellation: UMi
  • Variability type: EW
  • Maximal brightness (Mag): 14.800 (Clear)
  • Minimum brightness (Mag): 15.100 (Clear)
  • Astrophysical interest: Possible period changes
  • Created: 7/30/2014
  • Created by: admin
Show list of observations >>
Periodic elements:
  • Period (d): 0.388033000000000
  • Epoch (HJD): 2455614.43000
  • Secondary Epoch (HJD): 2455614.6240165 (est.)
Additional data:
  • Discoverer: Jiří Polák
  • Discoverer: Martin Vrašťák
  • Discovery year: 2011
  • Note: 
    M0=2455676.500 P=0.4013. pozorováno 1 rok. fázová křivka nesedí. http://var2.astro.cz/obslog.php?phase=yes&star=G4651.1079+UMi&obs_id=1270489348&projekt=%25&M0_ph=2455796.482506&PER_ph=0.4013&saveSettings=Ulo%9Eit+nastaven%ED&ph_min=&ph_max=&dataarray=133
  • Note: M = 2455614,43 + 0,388033 * E
Change log:

9/11/2025, Filip Walter:

  • Astrophysical interest: Nothing → Possible period changes

4/6/2025, Filip Walter:

  • Epoch: 2455676.5 → 2455614.43
  • Period: 0.4013 → 0.388033

Chart
CzeV251
Source: The STScI Digitized Sky Survey, FoV: 15 x 15 arcmin
Number of observations

30 x

Number of observers

4 x

Last observed before

1259 days

O-C diagram
Times of minima / maxima - including records from the original O-C gateway  
P: M = 2455614.43 + 0.388033 * E
S: M = 2455614.6240165 + 0.388033 * E
ID HJDmin Error (+/-) UTCmin Epoch O-C (d) P/S Phot. band Observer Publication Note Instrument
Phase curve
Comments

Timeline