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John Herschel in collection 
1840-1849::1847::10 in date 
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From:
Sir John Herschel
To:
Richard Sheepshanks
Date:
[13 October 1847]
Source of text:
RS:HS 16.73 (C: RS:HS 25.9.46)
Summary:

Gives information from W. R. Hamilton on the location of the asteroid Iris. Proposes R.A.S. begin collecting observations of sunspots, the goal being a complete series of 'the sun's aspect for every day of every year.' Offers the observations of H. Griesbach for 1846 as a 'nest egg' as well as some of his own. Requests address of G. Schwinck, who prepared a star atlas. Reports on F. G. W. Struve's Neptune observations.

Contributor:
John Herschel Project