From:
Friedrich Wilhelm Bessel
To:
Sir John Herschel
Date:
[9 October 1838]
Source of text:
RS:HS 4.71
Summary:
Announces the measurement of the annual parallax of 61 Cygni.
Contributor:
John Herschel Project
Showing 1–2 of 2 items
Announces the measurement of the annual parallax of 61 Cygni.
Thanks FB for letter in which FB announces the discovery of annual stellar parallax; JH questions whether effects of temperature have been adequately considered.