Planetary Transit

A planetary transit occurs when a planet passes directly between its star and an observer, causing a temporary dip in the star’s brightness. This event is observed as a small, regular dimming in the star’s light, which can be detected using telescopes and sensitive instruments. Transits help scientists discover and study exoplanets—planets outside our solar system—by revealing their size, orbit, and sometimes atmospheric composition. Essentially, it’s like a tiny shadow cast by a planet crossing in front of its star, providing valuable information about distant worlds.