Jean Focas

Jean-Henri Focas (20 July 1909 – 3 January 1969) was a Greco-French astronomer. In Greek he was known as Ioannis Focas. 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.

Focas (lunar crater)

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