The method used, the transit method, involves observing repeated transit of planets in front of their stars, which causes a slight reduction in the star's apparent magnitude, on the order of 0.01% for an Earth-size planet.
Metode yang digunakan, metode transit, melibatkan pengamatan transit berulang planet-planet di depan bintang mereka, yang menyebabkan sedikit berkurangnya magnitudo tampak bintang itu, pada kisaran 0,01% untuk planet seukuran Bumi.