Methods of detecting exoplanets 系外行星侦测法
(重定向自Direct imaging)
Any planet has an extremely faint light source compared to its parent star. In addition to the intrinsic difficulty of detecting such a faint light source, the light from the parent star causes a glare that washes it out. For those reasons, very few of the extrasolar planets reported as of April 2014, have been observed directly, with even fewer being resolved from their host star.