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Cheops reveals a rugby ball-shaped exoplanet

Written by  Monday, 10 January 2022 07:35
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ESA’s exoplanet mission Cheops has revealed that an exoplanet orbiting its host star within a day has a deformed shape more like that of a rugby ball than a sphere. This is the first time that the deformation of an exoplanet has been detected, offering new insights into the internal structure of these star-hugging planets.

Notes for editors


‘Cheops reveals the tidal deformation of WASP-103b’ by S.C.C. Barros et al. (2021) is published in Astronomy & Astrophysics.
DOI: https://www.aanda.org/10.1051/0004-6361/202142196

More about Cheops
Cheops is an ESA mission developed in partnership with Switzerland, with a dedicated consortium led by the University of Bern, and with important contributions from Austria, Belgium, France, Germany, Hungary, Italy, Portugal, Spain, Sweden and the UK.
ESA is the Cheops mission architect, responsible for procurement and testing of the satellite, the launch and early operations phase, and in-orbit commissioning, as well as the Guest Observers’ Programme through which scientists world-wide can apply to observe with Cheops. The consortium of 11 ESA Member States led by Switzerland provided essential elements of the mission. The prime contractor for the design and construction of the spacecraft is Airbus Defence and Space in Madrid, Spain.
The Cheops mission consortium runs the Mission Operations Centre located at INTA, in Torrejón de Ardoz near Madrid, Spain, and the Science Operations Centre, located at the University of Geneva, Switzerland.
For more information, visit: https://www.esa.int/Cheops

For further information, please contact:
ESA Media Relations


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