TOI-1855 (Transiting exoplanet)

RA: 13h 41m 24.95s, DE: +17° 41' 12.74" (205.3539583283, 17.6868722219)

3/26/2025, 22:26 - 3/27/2025, 00:51 (UTC)

Data:

  • Observer: Mark Salisbury
  • Created: 3/27/2025, 18:23
  • Station: Private Observatory
    Lat: +51°, Long: +01°
  • Instrument: 400mm f6.8 ODK, ST10XME, J/C Filters
  • Photometric band: Rc
  • Time standard: Gjd
  • Brightness in: Flux
Note:
240second exposure through Rc filter.  GPS time control.  Transits appeared shorter and shallower than ephemeris.  Analysis in AIJ.
Determined transits
  • 2460761.48676 (3/26/2025, 23:40)
    Planet designation: TOI-1855 b
    HJDmid: 2460761.49186 +/- 0.00065
    Heliocentric correction: 0.00510
    Transit depth (Mag): 0.00720 +/- 0.00044
    Transit duration (Min): 61.35 +/- 3.77
    Standard deviation (mmag): 0.68
    Data quality index: 2
    Data density (data/min): 0.21
    Fitting algorithm: Original ETD  
    Note:
    240second exposure through Rc filter.  GPS time control.  Transits appeared shorter and shallower than ephemeris.  Analysis in AIJ.  Data gaps before ingress due to line of sight obstruction.
Actions:

Light curve
Neighborhood of the object, comparison and check stars
Comments