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Catalogue Photographique du Ciel. Zone de Helsingfors. Entre +39° et +47°. Serie I: Coordonnées rectilignes et équatoriales T. VI. Clichés de 15h à 18h
Subject and Keywords:astrographic catalogue star zone +39° to +47° Helsingfors zone
Description: Place of publishing: Digitisation sponsor: Publisher:Imprimerie Société Anonyme Sana
Date issued: Detailed Type: Source: Language: Access rights:Publicly available without restrictions
License:Public Domain Mark 1.0 click here to follow the link
Location of original object:Astronomical Institute Library
Autor opisu: