From:
Charles H. Weston
To:
Sir John Herschel
Date:
[26 December 1870]
Source of text:
RS:HS 18.393
Summary:
Moon not uniformly dark during last eclipse of sun. In 1858, Mr. Stuart saw same phenomenon, but JH, W. R. Dawes, and [James] Breen reported no such partial illumination. Suggests that this observation was due to refrangibility in medium, not to actual illumination of moon.
Contributor:
John Herschel Project