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<-   Bi-prism block   ->
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Crédit : CNES

Exoplanets

The sensors dedicated to the exoplanet program :

The exoplanet line comprises on top of that a bi-prism block that spectrally scatters the image stain of the target stars, to distinguish the internal variations of stars from the planetary transits which are achromatic

  • These are CCD matrixes of 8 million pixels each (4096x2048).
  • One pixel is a square of 13 microns on each side.

The sensors have been chosen for their high efficiency to detect photons : it is greater than 85% in the color green.