Johannes Hevelius, Polish astronomer and politician (born 1611)

Johannes Hevelius

Astronomer and mayor of Gdańsk (1611–1687)

Johannes Hevelius was a councillor and mayor of Danzig (Gdańsk), in the Polish–Lithuanian Commonwealth. As an astronomer, he gained a reputation as "the founder of lunar topography", and described ten new constellations, seven of which are still used by astronomers.