From:
Wilhelm Schur
To:
Sir John Herschel
Date:
[25 April 1869]
Source of text:
RS:HS 17.180
Summary:
Is happy that his discovery of 70 Ophiuchi was included in JH's catalogue of double stars. Thanks for correction on a logarithm of the focal point equation; intends to change this in Astronomische Nachrichten.
Contributor:
John Herschel Project