Comparative analysis of observations of the selected exoplanet transits obtained at the Kyiv Comet station with the database of the orbital telescopes TESS and Kepler

TL;DR

This study compares exoplanet transit observations from ground-based Kyiv Comet station with space telescope data from TESS and Kepler, analyzing transit parameters and orbital characteristics to assess consistency across observation methods.

Contribution

It provides a comparative analysis of ground-based and space-based exoplanet transit data, highlighting the consistency of transit parameters across different observation platforms and epochs.

Findings

Transit parameters are consistent between ground-based and space-based observations.

Ground and space observations yield comparable orbital parameters.

The study demonstrates the reliability of ground-based observations for exoplanet transit analysis.

Abstract

We present a comparative analysis of observations of the selected exoplanet transits obtained at the Kyiv Comet station with the database of the TESS (Transiting Exoplanet Survey Satellite) and Kepler space telescopes. The light curves obtained by the TESS and Kepler orbital telescopes were processed using a program based on the Python package Lightkurve 2.3v which is freely available in the MUST archive (Barbara A. Mikulski Archive for Space Telescopes). The ground-based observations were carried out with the 70-cm telescope AZT-8 (Lisnyky). Photometric processing of the ground-based observation was performed by using the Muniwin program. The light curves and parameters of the observed transits as well as the exoplanet orbital parameters obtained from ground-based observations were published in the ETD (Exoplanet Transit Database). Determined transit parameters were compared with the results of the TESS command, which are stored in the MUST archive. Here we present a comparison of the parameters of transit phenomena (period, depth, transit duration) and some orbital parameters were obtained from two independent sets of observations, terrestrial and orbital, performed in different epochs.