Search: Herschel, John in correspondent 
Struve, Wilhelm in correspondent 
1820-1829::1828 in date 
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Herschel2868

From:
Sir John Herschel
To:
Wilhelm Struve
Date:
[6 July 1828]
Source of text:
RS:HS 21.13
Summary:

Sends WS JH's 'Light' published in the Encyclopaedia Metropolitana. Mentions recalibration of his magnitude measurements of small stars near other small ones. Comments on results in WS's paper concerning Saturn's ring. Confirms sighting of 'well defined, equable, planetary disk.'

Contributor:
John Herschel Project

Herschel3005

From:
Sir John Herschel
To:
Wilhelm Struve
Date:
[6 July 1828]
Source of text:
RS:HS 17.115b
Summary:

Lists contents of a letter sent on 1828-7-6. JH's Light and third catalogue of double stars sent. Details of nebulae included.

Contributor:
John Herschel Project

Herschel3004

From:
Wilhelm Struve
To:
Sir John Herschel
Date:
[6 May 1828]
Source of text:
RS:HS 17.115
Summary:

Accepts JH's extension of Class I double stars. Comments on comparison of these and suggests comparison of respective scales might be mutually useful. Includes continuation of work on micrometer measurements of Saturn. Notices strange eccentricity of Saturn's rings. Is considering comparing his degree-measurements with Finland and Lapland.

Contributor:
John Herschel Project
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