Abstract
We present a study of stellar activity and planetary transits of exoplanets. Without showing a mathematical rigor we showed how to obtain physical parameters such as: temperature, intensity and position of spots on the surface of solar type stars, as well as the average stellar rotation from public data of the Kepler Space Mission. As an example, we used the light curves of the Kepler-289 star and modeled the transits of the planet Kepler-289d resulting in 9 detected spots and a mean stellar rotation of 8.76 days.
Keywords:
starspot; exoplanet; rotation
