Rudolph Minkowski (Paperback)

High Quality Content by WIKIPEDIA articles! Rudolph Minkowski (born Rudolf Leo Bernhard Minkowski) (May 28, 1895 - January 4, 1976) was a German-American astronomer. His father was the physiologist Oskar Minkowski. His uncle was Hermann Minkowski. Rudolph studied supernovae and, together with Walter Baade, divided them into two classes (Type I and Type II) based on their spectral characteristics. He and Baade also found optical counterparts to various radio sources. He headed the Palomar Observatory Sky Survey, a photographic atlas of the entire northern sky (and down to declination -22 ) up to magnitude 22. He co-discovered the Apollo asteroid 1620 Geographos, and also discovered Planetary Nebula M2-9. He won the Bruce Medal in 1961. The crater Minkowski on the Moon is named after him and his uncle.