Search: Herschel, John in correspondent 
Rigaud, Stephen Peter in correspondent 
1830-1839::1830 in date 
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Herschel2090

From:
Stephen Peter Rigaud
To:
Sir John Herschel
Date:
[6 September 1830]
Source of text:
RS:HS 14.339
Summary:

Discusses [James] Bradley's observations of double stars. Asks JH for assistance.

Contributor:
John Herschel Project

Herschel8711

From:
Sir John Herschel
To:
Stephen Peter Rigaud
Date:
[7 September 1830]
Source of text:
Bodleian Library, Oxford
Summary:

[Responding to SR's 1830-9-6], provides information on James Bradley's observation; also notes a 'striking' anomaly in observation. Mentions study JH is doing on the Castor star system and JH's observations of Uranus's two moons.

Contributor:
John Herschel Project

Herschel2091

From:
Stephen Peter Rigaud
To:
Sir John Herschel
Date:
[8 September 1830]
Source of text:
RS:HS 14.340
Summary:

Thanks JH for letter [see SR's 1830-9-6]. Discusses publication of [James] Bradley's observations. Congratulates JH on confirming satellites of Uranus seen by William Herschel.

Contributor:
John Herschel Project

Herschel2092

From:
Stephen Peter Rigaud
To:
Sir John Herschel
Date:
[21 September 1830]
Source of text:
RS:HS 14.341
Summary:

Discusses [James] Bradley's observations and possibility of double stars [see SR's 1830-9-6]. Seems no double stars are readily apparent. Discusses another experiment.

Contributor:
John Herschel Project

Herschel8712

From:
Sir John Herschel
To:
Stephen Peter Rigaud
Date:
[24 October 1830]
Source of text:
Bodleian Library, Oxford
Summary:

Apologizes that JH has been to busy to study James Bradley's observations of double stars sent by SR. Has been busy writing on another subject.

Contributor:
John Herschel Project

Herschel2093

From:
Stephen Peter Rigaud
To:
Sir John Herschel
Date:
[30 October 1830]
Source of text:
RS:HS 14.342
Summary:

Discusses eighteenth-century observations from Greenwich. Describes curious observations of stars in Gamma Virginis and Polaris.

Contributor:
John Herschel Project
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