Sujet

Photograph of Gustav Spörer

Légende

Photograph of Gustav Spörer (1822-1895) a German astronomer. Dated 19th Century

Date

19e siècle

Crédit

Photo12/Ann Ronan Picture Library

Notre référence

ARP23A12_373

Licence

Droits gérés

Format disponible

180.0Mo (5.9Mo) / 55.5cm x 81.2cm / 6561 x 9589 (300dpi)

Mots clés

19th Century Early Photograph Early Photography Photograph Photography Gustav Spörer Friederich Wilhelm Gustav Spörer German Germany Astronomer Astronomy Sunspots Sunspot Cycles 19th Century