Johann Franz Encke

science · 23 September 1791 · 233 years ago

birth Born 23 Sep 1791; died 26 Aug 1865 at age 73.
German astronomer who in 1819 established the period of the comet now known by as Encke's Comet. At at 3.3 years it has the shortest period of any known.

More science on 23 Sep