Sunspots, 12 August 1917.
3 3 c m
40cm
actual image size: 32cm x 25cm

Sunspots, 12 August 1917.

© Science Museum / Science & Society Picture Library

Description

This solar photograph, in white light, shows the whole disc of the Sun on 12 August, 1917. Taken using the 60-Foot Tower Telescope at Mount Wilson Observatory in California, United States, it shows a large group of sunspots lying close to the Sun's equator. Completed in 1907, the solar telescope was designed by the American astronomer George Ellery Hale (1868-1938) who established the observatory three years earlier. Dimensions: 381mm x 482mm.
 

Image Ref.

10196952
 

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