Friedrich Tietjen

From Wikipedia, the free encyclopedia
Jump to: navigation, search
Friedrich Tietjen.

Friedrich Tietjen (1834, Westerstede, Oldenburg – 1895) was a German astronomer.

He was director of the Astronomisches Rechen-Institut (ARI) from 1874 until his death in 1895.

Asteroids discovered: 1
86 Semele January 4, 1866