This technique requires an extremely high signal-to-noise ratio, and has thus far been successfully applied to only a few planets orbiting small, nearby, relatively bright stars, such as HD 189733 b and GJ 1214 b.
這項技術需要極高的信噪比才能進行，而目前只能在少數環繞體積較小且距離行星較近、亮度較高恆星旁的行星實現，例如HD 189733 b和GJ 1214 b。