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Herschel, John in correspondent 
Astronomische Nachrichten in correspondent 
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From:
Sir John Herschel
To:
Astronomische Nachrichten
Date:
1823
Source of text:
Astronomische Nachrichten, 1 (1823), 30-31
Summary:

Gives a formula related to a table published in the Nautical Almanac, which table listed various stellar observations made by John Pond.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
Astronomische Nachrichten
Date:
[15 August 1825]
Source of text:
Astronomische Nachrichten, 4 (1826), 231-6
Summary:

Writing in response to claims made by Josef Fraunhofer, discusses the relative merits of reflecting versus refracting telescopes. Adds comments on double star observations made by JH and James South.

Contributor:
John Herschel Project