From:
Sir John Herschel
To:
George Biddell Airy
Date:
[30 September 1845]
Source of text:
RGO 6.193.210
Summary:
Asks for new observational data on Gamma Virginis [see JH's 1843-7-18].
Contributor:
John Herschel Project
Asks for new observational data on Gamma Virginis [see JH's 1843-7-18].
Believes GA's measurements [see GA's 1845-10-1] seriously in error, and strenuously defends JH's method.
Will consider GA's objections [see GA's 1845-12-27] when JH works further on double star orbits.
Regarding measure of Virginis.
Thanks GA for the information about the presentation made to F. W. Bessel [see GA's 1845-10-20], and for sharing Bessel's reply.
Has been informed that William Parson's telescope resolves all the nebulae in JH's catalogue into stars.
Mostly about the health of JH and his wife, Margaret.