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Friedrich Tietjen

Friedrich Tietjen.
Asteroids discovered: 1 [1]
86 Semele 4 January 1866 MPC

Friedrich Tietjen (1832 in Westerstede, Oldenburg – 1895 in Berlin) was a German astronomer.[2]

He was director of the Astronomisches Rechen-Institut (ARI) from 1874 until his death in 1895. The Minor Planet Center credits him with the discovery of one minor planet, the 120-kilometer sized asteroid 86 Semele.[1]

The main-belt asteroid 2158 Tietjen, discovered by Karl Reinmuth at Heidelberg Observatory in 1933, was named in his memory.[2]

  1. ^ a b Cite error: The named reference MPC-Discoverers was invoked but never defined (see the help page).
  2. ^ a b Cite error: The named reference springer was invoked but never defined (see the help page).

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فريدريك تيتجين ARZ Friedrich Tietjen German Φρήντριχ Τίτγεν Greek Friedrich Tietjen EO Friedrich Tietjen Spanish Friedrich Tietjen French Ֆրիդրիխ Տիետյեն HY Friedrich Tietjen Italian フリードリッヒ・ティーティエン Japanese Friedrich Tietjen LB

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