Artist's Concept of a Transit with a Graphic Light Curve

About this video
Duration: 16 seconds

One way that astronomers look for and study extrasolar planets is by watching stars and noting periodic changes in their brightness. Those changes are caused by the slight dimming of the star as a planet passes between it and the Earth. This animation illustrates the dimming effect of a planet on its host star, as represented by the graphic light curve.

Animated Answers, Exoplanets, Stars


B. Preston (Max-Q Digital, STScI)

Publication: November 27, 2001

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