Transit observation is a research area within astronomy that involves studying the transit of exoplanets in front of their host stars. This technique involves monitoring the light curve of a star over time and looking for periodic dips in brightness that occur when an exoplanet passes in front of the star from our line of sight. By analyzing these transit events, astronomers can gather valuable information about the properties of exoplanets, such as their size, orbit, and atmospheric composition. Transit observation has been instrumental in discovering thousands of exoplanets and advancing our understanding of planetary systems beyond our own.