TOI-3540 A (Transiting exoplanet)

RA: 21h 55m 38.73s, DE: +28° 10' 46.20" (328.9113749900, 28.1794999993)

10/13/2025, 7:11 PM - 10/14/2025, 12:08 AM (UTC)

Data:
  • Observer: Alessandro Marchini
  • Created: 10/14/2025 3:19:02 PM
  • Station: Astronomical Observatory, University of Siena (K54)
    Lat: +43°, Long: +11°
  • Instrument: Telescope Mak-Cas 0.3m f/5.6, CCD Sbig STL-6303, BVRI filters
  • Photometric band: I
  • Time standard: Gjd
  • Brightness in: Mag
Note:
Exp: 180s
Binning: 1x1 (1.15 arcsec/pixel).
Meridian flip:  no, session started already flipped.
Moon: 49%, rises at 21:30 at about 120 degrees.
Sky: clear; seeing 2/5.
Defocus: none, initial FWHM ~ 4.6 arcsec.
Determined transits
  • 2460962.39751 (10/13/2025, 21:32)
    Planet designation: TOI-3540 A b
    HJDmid: 2460962.40111 +/- 0.00168
    Heliocentric correction: 0.00360
    Transit depth (Mag): 0.00986 +/- 0.00111
    Transit duration (Min): 105.87 +/- 10.38
    Standard deviation (mmag): 1.69
    Data quality index: 3
    Data density (data/min): 0.27
    Fitting algorithm: Original ETD
    Note: 
    Exp: 180s
Binning: 1x1 (1.15 arcsec/pixel).
Meridian flip:  no, session started already flipped.
Moon: 49%, rises at 21:30 at about 120 degrees.
Sky: clear; seeing 2/5.
Defocus: none, initial FWHM ~ 4.6 arcsec.
Actions:
Light curve
Neighborhood of the object, comparison and check stars
Chart - TOI-3540 A, JD 2460962.29935
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