TrES-4 (Transiting exoplanet)

RA: 17h 53m 13.05s, DE: +37° 12' 42.80" (268.3043749950, 37.2118888889)

4/26/2026, 22:29 - 4/27/2026, 02:33 (UTC)

Data:
  • Observer: Giovanni Calapai
  • Created: 4/27/2026, 23:21
  • Updated by: Giovanni Calapai
  • Updated: 4/27/2026, 23:36
  • Station: Calapai Astronomical Observatory
    Lat: +38°, Long: +16°
  • Instrument: Celestron C14 (SCT 356/3910) Atik 314L+ red. 0,7x
  • Photometric band: IR
  • Time standard: Gjd
  • Brightness in: Mag
Determined transits
  • 2461157.51006 (4/27/2026, 00:14)
    Planet designation: TrES-4 b
    HJDmid: 2461157.51188 +/- 0.00294
    Heliocentric correction: 0.00181
    Transit depth (Mag): 0.01133 +/- 0.00152
    Transit duration (Min): 213.32 +/- 9.46
    Standard deviation (mmag): 3.02
    Data quality: 3 (good)
    Data density (data/min): 0.65
    Fitting algorithm: Original ETD  
    Note: 
    Adopted limb darkening: 0.5 | EXP. 90s | defocus | bin 2x2 | FWHM 5.6 px (4.4 arc-sec/pixel) | weather: clear, moisture | bortle 5, encircling light pollution | Photometric aperture radii: 8-18-22 | Baader IR-Pass filter 685 nm | Moon illumination: 78.9%, distance: 99°
Actions:
Light curve
Star field chart
Chart - TrES-4, JD 2461157.43689
Explicitly named stars

No comparison or check stars are explicitly listed for this observation. They should be marked in the star field chart.

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