From:
William Selwyn
To:
Sir John Herschel
Date:
[11 May 1870]
Source of text:
RS:HS 15.508
Summary:
Desires permission to present JH's 'diagram of "macularity"' to the R.A.S.
Contributor:
John Herschel Project
Showing 1–3 of 3 items
Desires permission to present JH's 'diagram of "macularity"' to the R.A.S.
Wants to compare Mr. Titterton's photographs of the spot groups to [Warren] de La Rue's. Has tried to determine if some localities regularly have spots.
The research shows no particularly 'maculiferous' area on the sun, but WS may, as WS requested, present 'data' to the R.A.S. Has noticed two new spots on helioautographs on 20 and 27 April.