When an exoplanet passes in front of its host star, it causes a dip in the star's brightness. This dip can be detected by measuring changes in the star's light output. Transit photometry can reveal the size and composition of orbiting exoplanets.
When an exoplanet passes in front of its host star, it causes a dip in the star's brightness. This dip can be detected by measuring changes in the star's light output. Transit photometry can reveal the size and composition of orbiting exoplanets.