Searching for nearby exo-Earths around cool stars with ExTrA

Sited at ESO’s La Silla Observatory in northern Chile, the French national ExTrA (Exoplanets in Transits and their Atmospheres) project is amongst a new generation of planet-hunting telescopes. Comprising three 60-centimetre telescopes, the facility utilises the transit method to detect Earth-sized worlds in the Milky Way — looking for slight dips in the light from a star that could be caused by a planet passing across the star’s disc and obscuring some of its light.

Credit:

ESO

About the Image

Id:extra
Type:Photographic
Release date:4 May 2017, 17:00
Size:1500 x 787 px

About the Object

Name:Exoplanets in Transits and their Atmospheres
Type:Unspecified : Technology : Observatory : Telescope
Category:La Silla

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