Kaj Aage Gunnar Strand
Kaj Aage Gunnar Strand was a Danish astronomer who worked in Denmark and the United States He was Scientific Director of the U.S. Naval Observatory from 1963 to 1977. He specialized in astrometry, especially work on double stars and stellar distances.
Kaj Strand was born February 27, 1907 in Hellerup, Denmark, on the outskirts of Copenhagen. He entered the University of Copenhagen in 1926, majored in astronomy, and graduated in 1931 with Magister and Candidate Magister degrees. At the invitation of Ejnar Hertzsprung, during the 1930s he worked at Leiden on a program of photographing double stars he applied these results toward his doctorate from Copenhagen in 1938. From 193842 Strand worked under Peter van de Kamp as a Research Associate at Swarthmore College, and began the photographic double star program with the 24160in refractor telescope at the colleges Sproul Observatory. During World War II he entered the U.S. Army, and then the U.S. Army Air Force, and flew as a Captain and chief navigator on B29 Superfortress tests. As head of the Navigation Department he was involved in operational training of special air crews, including the first atomic bomb crew.
Source: Wikipedia