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

Friedrich Tietjen (1832, Westerstede, Oldenburg – 1895 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]

ReferencesEdit

  1. ^ a b "Minor Planet Discoverers (by number)". Minor Planet Center. 20 June 2016. Retrieved 15 August 2016.
  2. ^ a b Schmadel, Lutz D. (2007). "(1567) Alikoski". Dictionary of Minor Planet Names – (1567) Alikoski. Springer Berlin Heidelberg. p. 124. doi:10.1007/978-3-540-29925-7_1568. ISBN 978-3-540-00238-3.