CHEOPS mission

CHEOPS space tele­scope: char­ac­ter­is­ing ex­tra­so­lar plan­ets

CHEOPS - ESA's first exoplanetary mission
CHEOPS - ESA's first ex­o­plan­e­tary mis­sion
Credit: ESA / ATG medialab

CHEOPS - ESA's first exoplanetary mission

Artist's im­pres­sion of ESA's CHEOPS (Char­ac­ter­is­ing Ex­o­plan­et Satel­lite) mis­sion with an ex­o­plan­e­tary sys­tem in the back­ground.

The main objective of the Characterising Exoplanet Satellite (CHEOPS) mission is to investigate the structure of exoplanets larger than Earth but smaller than Neptune, or with a diameter of between 10,000 and 50,000 kilometres.

Today, we know of more than 4000 exoplanets, which have been discovered by ground-based telescopes or by space telescopes such as Kepler, TESS and CoRoT. The Kepler mission has been particularly prolific in revealing planetary candidates, but many of the Kepler ‘candidates’ still remain to be checked and confirmed. As such, CHEOPS’ main task is to determine the size, orbital period and physical characteristics of these planets by measuring the light curves of bright stars during so-called transits – the path of the exoplanet in its orbit when it crosses the star’s disc – and their associated dimming.

More information
  • Falk Dambowsky
    Ger­man Aerospace Cen­ter (DLR)
    Me­dia Re­la­tions
    Com­mu­ni­ca­tions and Me­dia Re­la­tions
    Telephone: +49 2203 601-3959
    Fax: +49 2203 601-3249
    Linder Höhe
    51147 Cologne
  • Prof. Heike Rauer
    Ger­man Aerospace Cen­ter (DLR)
    In­sti­tute of Plan­e­tary Re­search
    Rutherfordstraße 2
    12489 Berlin

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