(6999) Meitner

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( 6999 ) Meitner is an asteroid of the main asteroid belt, which on 16 October 1977 by the Dutch team of observers Cornelis Johannes van Houten, Ingrid van Houten - Groeneveld and Tom Gehrels under the Third Trojan screening ( Third Trojan- Survey) at the Palomar Observatory ( IAU code 675) was discovered in California.

The asteroid was named after the Austrian- Swedish nuclear physicist Lise Meitner (1878-1968), in 1917, together with Otto Hahn discovered the chemical element protactinium and together with her nephew Otto Robert Frisch provided the first physical- theoretical explanation of nuclear fission in January 1939.