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<-   Preparation work   ->
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Crédit : Paris Observatory / LESIA

The selection of the target stars observed by CoRoT requires meticulous preparation work. In the case of the sismology program, the maximum amount of information on a few hundred stars must be gathered, and in the case of the exoplanet program, some data must be gathered on about one hundred thousand stars.

This selection work required a huge ground-based observation effort.

Begun in 1998 and terminated at the end of 2005, this work required between 350 and 400 preliminary night observations.