Record Name | Ans_02775-054-PL |
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Photographer | nicht anwendbar |
Dating | 1.6.1881-6/1887 |
Caption | Sonnengranulation, Jannsen 1. VI. 1881. Fotogrfie I: Maximum type. Fotografie II: Minimum type. I. Taken at Meudon on the 1st of June, 1881, by Dr. Jules Janssen, with an Object-glass of five French inches aperture, two metres, 10 cent. focus, and an Eye-piece enlarging the Image in the principal Focus, fifteen diameters. Diameter of the Sun's Image, if on the same scale as in plate, three-quarters of a metre. II. Raken at Meudon on the 10th June 1987, with Refractor of five inches aperture. Diameter of the Sun's Image, if on the same scale as in plate, three-quarters of a metre. |
Physical Description | Fotografie : Papierabzug, auf Karton montiert |
Format | Spezialmass |
Special Size | 28,5 x 21,5 cm; 28,5 x 21,5 cm |
Colour | schwarz/weiss |
Orientation | Querformat |
Categories |
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License | Public Domain Mark |
Copyright Notice | ETH-Bibliothek Zürich, Bildarchiv / Fotograf: nicht anwendbar / Ans_02775-054-PL / Public Domain Mark |
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