Identification of Exoplanet Host Star OGLE-2005-BLG-169 (Artist's Illustration)

Identification of Exoplanet Host Star OGLE-2005-BLG-169 (Artist's Illustration)

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Fast Facts
News release ID: STScI-2015-27
Release Date: Jul 30, 2015
Image Use: Copyright
About this image

This graphic illustrates how a star can magnify and brighten the light of a background star when it passes in front of the distant star. If the foreground star has planets, then the planets may also magnify the light of the background star, but for a much shorter period of time than their host star. Astronomers use this method, called gravitational microlensing, to identify planets.


Tags
Exotic, Extrasolar Planets, Gravitational Lensing, Hubble Telescope, Illustrations, Planets, Stars

Credits

NASA, ESA, and A. Feild (STScI)