Ans_02775-054-PL

Photograph of the Sun's Surface, showing Group of Sun-spots and Rice-grain Structure of Photosphere of Sun-spot

Metadata for image Ans_02775-054-PL
Record Name Ans_02775-054-PL
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
  • General > keine Person
  • General > retro
  • Ort > Politische Geographie > Europa > Frankreich
  • Wolf, Johann Rudolf, Sammler
  • General > leer
  • Sachkatalog > Natur > Weltall > Sonne
  • Ansichtensammlung
  • N > nicht anwendbar
  • ETH-Institute > Eidgenössische Sternwarte Zürich
  • General > schmutzig
  • Ort > Politische Geographie > Europa > Grossbritannien und Nordirland > England > Gross-London > London
  • Naturfotografien
  • General > Papier
  • General > Antike
License Public Domain Mark
Copyright Notice ETH-Bibliothek Zürich, Bildarchiv / Fotograf: nicht anwendbar / Ans_02775-054-PL / Public Domain Mark

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