title: Naum Idelson
text: # Naum Idelson
  
  Naum Ilyich Idelson (Russian: Наум Ильич Идельсон) (March 1(13), 1885, Saint Petersburg - July 14, 1951, Leningrad) was a Soviet theoretical astronomer and expert in history of physics and mathematics.
  
  The crater Idelson on the Moon is named after him.
  
  