Oort, Jan Hendrik.
Selected correspondence [microform], 1927-1956.
Correspondence of Oort while astronomer, then director of the Leiden Observatory with colleagues John Stanley Plaskett, director of the Dominion Astrophysical Observatory, Victoria, Canada; Otto Struve, director of the Yerkes and McDonald Observatories; and Wilhelm Baade, astrophysicist at the Mount Wilson and Palomar Observatories. Topics include galactic structure and stellar populations.
Astronomer (galactic structure, interstellar gas, comets). (1900-1992). Astronomer at and, from 1945, Director of the Leiden Observatory; on the faculty of University of Leiden from 192; established observational verification of galactic rotation; one of the authors of the Oort-Lindbald theory of differential galactic rotation; initiator, with Baade, of the European Southern Observatory; general secretary of the International Astronomical Union from 1935-1948, and president from 1958-1961.
Baade, Walter, 1893-1960.
Plaskett, John Stanley, 1865-1941.
Struve, Otto, 1897-1963.
Dominion Astrophysical Observatory
Sterrewacht Leiden
McDonald Observatory
Palomar Observatory
Yerkes Observatory
Astronomical observatories
Galaxies
Stars -- Populations.
Stars -- Structure.
Astronomers lcsh
Sterrewacht Leiden.
AIP-ICOS
American Institute of Physics. Niels Bohr Library & Archives. One Physics Ellipse, College Park, MD 20740, USA