CzeV195 (Eclipsing binary, Eruptive variable)

RA: 18h 42m 31.59s, DE: +34° 47' 08.52" (280.6316416667, 34.7856999997)

CzeV: CzeV195, CzeV: CzeV 195, TwoMass: 2MASS 18423159+3447085, Ucac4: UCAC4 624-060044

Data:

  • Constellation: Lyr
  • Variability type: EA+BY+UV
  • Maximal brightness (Mag): 14.100 (g)
  • Minimum brightness (Mag): 14.230 (g)
  • Brightness in secondary minimum (Mag): 14.120 (g)
  • D (h): 1.600
  • Astrophysical interest: Peaks on the light curve
  • Created: 7/30/2014
  • Created by: admin
Periodic elements:

  • Period (d): 0.604905000000000
  • Epoch (HJD): 2460478.48000
  • Secondary Epoch (HJD): 2460478.7824525 (est.)
Additional data:

  • BY component::
    BY amplitude 0.02 g. Eclipse amplitude Min. I: 0.13 g, Min. II: 0.02 g (I. Peretto)
  • Discoverer: Jaroslav Trnka
  • Discovery year: 2010
  • Note:
    http://var2.astro.cz/EN/obslog.php?obs_id=1183832205&projekt=%&star=CzeV195%20Lyr&lang=en
Change log:

2/27/2025, Filip Walter:

  • Variability type: EA: → EA+BY+UV
  • MD: BY component:: Null → BY amplitude 0.02 g. Eclipse amplitude Min. I: 0.13 g, Min. II: 0.02 g (I. Peretto)

2/18/2025, Filip Walter:

  • Epoch: 0 → 2460478.48
  • Period: 0 → 0.604905
  • D: Null → 1.6
  • Photometric band: V → g
  • Brightness in secondary minimum: 0 → 14.12
  • Minimum brightness: 13.65 → 14.23
  • Maximal brightness: 13.5 → 14.1
  • Astrophysical interest: Nothing → Peaks on the light curve
  • Eruptive variable: False → True
  • Intrinsic variable: False → True

Chart
CzeV195
Source: The STScI Digitized Sky Survey, FoV: 15 x 15 arcmin
Number of observations

2 x

Number of observers

2 x

Last observed before

2 days

O-C diagram
Times of minima / maxima - including records from the original O-C gateway  
P: M = 2460478.48 + 0.604905 * E
S: M = 2460478.7824525 + 0.604905 * E
ID HJDmin Error (+/-) UTCmin Epoch O-C (d) P/S Phot. band Observer Publication Note Instrument
Phase curve
Comments

Timeline