From:
Sir John Herschel
To:
George Biddell Airy
Date:
[3 June 1864]
Source of text:
RGO 6.255.44
Summary:
About observing a grain-shaped spot on the sun; greetings to Friedrich Winnecke.
Contributor:
John Herschel Project
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About observing a grain-shaped spot on the sun; greetings to Friedrich Winnecke.