Search: 1820-1829::1821 in date 
Herschel, John in correspondent 
Olbers, Heinrich Wilhelm Matthias in correspondent 
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From:
Sir John Herschel
To:
Heinrich Wilhelm Matthias Olbers
Date:
[9 February 1821]
Source of text:
RS:HS 19.9
Summary:

HO was elected associate of Astronomical Society. Prize for 1821 relates to Saturn's satellites.

Contributor:
John Herschel Project
From:
Heinrich Wilhelm Matthias Olbers
To:
Sir John Herschel
Date:
[11 March 1821]
Source of text:
RS:HS 13.174
Summary:

Honored on being elected Foreign Member of the Astronomical Society of London. Finds that the comet he observed in January had already been seen by J. N. Nicollet and J. L. Pons. Saw the remarkable appearance on the dark part of the moon noticed by Henry Kater. Thinks Kater's theory is wrong. Will soon be bringing out a paper on the moon's volcanoes.

Contributor:
John Herschel Project