From:
William Selwyn
To:
Sir John Herschel
Date:
[29 March 1866]
Source of text:
RS:HS 15.485
Summary:
Compiling three year series of helioautographs. Wants suggestions for noting the position of planets supposedly influencing sunspots. Discusses a passage from one of Galileo's letters concerning the influence of the planets on the sun's face.
Contributor:
John Herschel Project