Johann Franz Encke

Johann Franz Encke (German pronunciation: [ˈjoːhan ˈfʁants ˈɛŋkə]; 23 September 1791  26 August 1865) was a German astronomer. Among his activities, he worked on the calculation of the periods of comets and asteroids, measured the distance from the Earth to the Sun, and made observations of the planet Saturn.

Johann Franz Encke
Johann Franz Encke
Born(1791-09-23)23 September 1791
Died26 August 1865(1865-08-26) (aged 73)
Spandau (now part of Berlin), Province of Brandenburg
NationalityGerman
Alma materUniversity of Göttingen
Known for12P/Pons-Brooks comet
AwardsCotta prize (1817)
Royal Medal (1828)
Gold Medal of the Royal Astronomical Society (1824, 1830)
Scientific career
FieldsAstronomy
InstitutionsUniversity of Berlin
Academic advisorsCarl Friedrich Gauss
Doctoral studentsJohann Gottfried Galle
Leopold Kronecker
Demetrios Kokkidis
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