If you are not immediately redirected, please click here
Donner, Anders Severin, 1854-1938.
Anders Severin Donner Correspondence, 1879-1931.
A. Letters; B. Carte du Ciel programme, Helsinki University Observatory; C. Very many correspondents, predominantly well-known astronomers in several countries (J.C. Kapteyn, Elis Strm̲gren, etc.).
Professor of astronomy and director, University of Helsinki Observatory, 1883-1915. He initiated and led the Helsinki participation in the international "Carte du Ciel" program. The photographic work for the Helsinki zone of the catalog was started in 1890, and the last volume of the catalog was printed in 1937. The Helsinki catalog includes exact magnitudes and coordinate for about 285,000 stars.
Kapteyn, J. C. (Jacobus Cornelius), 1851-1922
Observatories -- Finland.
Stars -- Catalogs.
Astronomers -- Europe.
Strm̲gren, Svante Elis, 1870-1947
Carte du Ciel.
University of Helsinki. Observatory.
AIP-ICOS
University of Helsinki. Observatory Library. P.O. Box 14. 00014 University of Helsinki, Helsinki, Finland.
Catalog