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Henderson, Thomas in correspondent 
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1840-1849::1842::02 in date 
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Herschel10417

From:
Sir John Herschel
To:
Thomas Henderson
Date:
[4 February 1842]
Source of text:
RS:HS 9.298 & 22.112
Summary:

Congratulates him on his discovery of the parallax of Alpha Centauri. Comments on this and makes suggestions for further examination.

Contributor:
John Herschel Project

Herschel10418

From:
Thomas Henderson
To:
Sir John Herschel
Date:
[11 February 1842]
Source of text:
RS:HS 9.299
Summary:

Thanks for letter and printed address and for the favorable notice of his investigations into Alpha Centauri. Comments on these and some of his observations on other stars. Encloses a note of the position of seven circumpolar stars.

Contributor:
John Herschel Project
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