Search: John Herschel in collection 
Herschel, Caroline Lucretia in correspondent 
1830-1839::1832::04 in date 
letter in document-type 
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From:
Caroline Lucretia Herschel
To:
Sir John Herschel
Date:
[20 April 1832]
Source of text:
unknown
Summary:

Reminds JH to send his catalog of double stars.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
Caroline Lucretia Herschel
Date:
[17 April 1832]
Source of text:
TxU:H/L-0577.2.a; Reel 1058
Summary:

Wilhelm Struve's observations support JH's findings concerning the rapid revolution of Eta Coronae. In acknowledgement of the discovery that double stars are a 'revolving binary system,' JH changed the inscription on William Herschel's monument.

Contributor:
John Herschel Project