Template:Selected anniversaries/September 23: Difference between revisions

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||1785: Per Georg Scheutz born.
||1785: Per Georg Scheutz born.


||1791 – Johann Franz Encke, German astronomer and academic (d. 1865)
||1791 – Johann Franz Encke, German astronomer and academic (d. 1865) 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.


||1819 – Hippolyte Fizeau, French physicist and academic (d. 1896)
||1819 – Hippolyte Fizeau, French physicist and academic (d. 1896)

Revision as of 21:23, 28 October 2017