Methods of detecting exoplanets | Wikipedia audio article
Channel: Subhajit Sahu
Date: 2018-11-18

This is an audio version of the Wikipedia Article:
Methods of detecting exoplanets

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SUMMARY
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Any planet is an extremely faint light source compared to its parent star. For example, a star like the Sun is about a billion times as bright as the reflected light from any of the planets orbiting it. 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.
Instead, astronomers have generally had to resort to indirect methods to detect extrasolar planets. As of 2016, several different indirect methods have yielded success.