Jean Focas

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Jean-Henri Focas (20 July 1909 – 3 January 1969) was a Greek-French astronomer. In Greek he was known as Ioannis Focas (Greek: Ιωάννης Φωκάς). He worked at the Pic du Midi Observatory, investigating the surface features of Mars using visual and photographic techniques. The lunar crater Focas and a crater on Mars were named after him.