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From:
Sir John Herschel
To:
Caroline Lucretia Herschel
Date:
[10 January 1837]
Source of text:
TxU:H/L-0582.1.a; Reel 1058
Summary:

Reports that he viewed Halley's Comet from 1836-1-25 to 1836-5-10. Now studying sunspots and solar radiation. Comments that the sun has more spots than JH previously thought. Has been busy during the December solstice determining the constant of solar radiation.

Contributor:
John Herschel Project