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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 (born Sept. 23, 1791, Hamburg—died Aug. 26, 1865, Spandau, Ger.) was a German astronomer who in 1819 established the period of the comet now known by his name (see Encke’s Comet).
- The Editors of Encyclopaedia Britannica
Johann Franz Encke was a German astronomer. 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 Encke was the leading German astronomer of his generation, contributing substantially to celestial mechanics, observation of the Solar System, and the professional development of the German‐speaking astronomical community.
- Michael Meo
May 18, 2018 · Encke, Johann Franz. ( b. Hamburg, Germany, 23 September 1791; d. Spandau [near Berlin], Germany, 28 August 1865) astronomy. The eighth child of a Lutheran preacher, J. Michael Encke, and his wife, M. Elisabeth Misler, Encke displayed an early interest in mathematics but did not enter the University of Göttingen until the autumn of 1811.
Science and Its Times: Understanding the Social Significance of Scientific Discovery. Johann Franz Encke1791-1865 German astronomer known for his mathematical work in astronomy, especially on short periodic comets.
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"Johann Franz Encke" published on by null. (1791–1865)Germanmathematician and astronomer. In 1819 he calculated the orbit of a comet (subsequently named Comet Encke) that had been discovered by J. L. Pons, and found that its period was less than 4 years, still the shortest known.
