File:The radial velocity method (artist's impression).jpg

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    Description The radial velocity method to detect exoplanet is based on the detection of variations in the velocity of the central star, due to the changing direction of the gravitational pull from an (unseen) exoplanet as it orbits the star. When the star moves towards us, its spectrum is blueshifted, while it is redshifted when it moves away from us. By regularly looking at the spectrum of a star - and so, measure its velocity - one can see if it moves periodically due to the influence of a companion.
    Date
    Source European Southern Observatory
    Author European Southern Observatory
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    This file, which was originally posted to European Southern Observatory, was reviewed on 13 May 2020 by reviewer Acagastya, who confirmed that it was available there under the stated license on that date.

    Captions

    Artist impression of the radial velocity method for detecting exoplanets.

    Items portrayed in this file

    depicts

    inception

    25 April 2007

    media type

    image/jpeg

    ISCC code

    ISCC:KEC4JSLQODV4KDP26EPVVYAOMYT2LNC3XYL7OI5CJEDHUP3L7KCN4ZI

    Wikimedia page-version URL: https://commons.wikimedia.org/w/index.php?oldid=1085644232

    File history

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    Date/TimeThumbnailDimensionsUserComment
    current04:35, 13 May 2020Thumbnail for version as of 04:35, 13 May 20202,374 × 1,773 (339 KB)wikimediacommons>Acagastyaessentially croppping

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