Otto Hermann Leopold Heckmann (June 23 1901 - May 13 1983) was a German astronomer. He directed the Hamburg Observatory from 1941 to 1962, after which he became the first director of the European Southern Observatory. He actively contributed to the creation of the third catalog of the "Astronomische Gesellschaft". He also contributed to cosmology based on the fundamentals of general relativity, and wrote the book "Theorien der Kosmologie". Wikipedia
The definitive Wikipedia entry for Otto Heckmann. Wikipedia is the biggest multilingual free-content encyclopedia on the Internet. en.wikipedia.org/wiki/Otto_Heckmann
