Answer and Explanation
If the star dims by about 0.1% for about two hours on every 63rd day and the dimming is caused by a single planet, it can be concluded that the planet is moving closer to the dimming star. If viewed from the planet Earth, the star is slowly being covered by the other planet. When this happens it is said that there is astronomical transit.Astronomical transit occurs when at least one celestial body appears to move across the face of another celestial body.By this it hides a small part of its body as it is seen by the observers at some particular vantage point