Rudolph Minkowski

Rudolph Minkowski (born Rudolf Leo Bernhard Minkowski) (May 28 1895 – January 4 1976) was a German-American astronomer. His uncle was Hermann Minkowski.

Studied supernovas 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.

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.

He won the Bruce Medal in 1961.