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From:
Sir John Herschel
To:
Hugh Percy (3rd Duke of Northumberland)
Date:
1837-12-16/17
Source of text:
RS:HS 13.352 & 21.234
Summary:

Describes his observational activities, especially the discovery of the variable nature of Eta Argo, and the rediscovery of the sixth satellite of Saturn.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
James Dunlop
Date:
[15 December 1837]
Source of text:
TxU:H/L-0145; Reel 1054
Summary:

JH's observations disagree with JD's 'Catalogues of Nebulae and Double Stars' [observed at Paramatta, Australia]. Believes errors lie in JD's work. Will send copy of JH's catalogue as soon as it is printed. [8pp of notes extracted by JH from JD's catalog; 7 pp of JH's comments, written in another hand, about these notes.]

Contributor:
John Herschel Project
From:
Andrew Smith
To:
Sir John Herschel
Date:
[16 December 1837]
Source of text:
RS:HS 16.177
Summary:

More about lack of success of exhibition, and about publication of observations [see AS's 1837-8-27].

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
Francis Baily
Date:
[16 December 1837]
Source of text:
RS:HS 3.141 (C: RS:HS 25.8.11)
Summary:

Observations regarding the nebulous star 1281.

Contributor:
John Herschel Project
From:
Francis Beaufort
To:
Sir John Herschel
Date:
[18 December 1837]
Source of text:
RS:HS 3.353
Summary:

Is sending him a letter of Basil Hall. William Whewell is preparing another paper on the tides and is hoping for data from JH when he returns. Hears that JH will be home in June. Looks forward to seeing him again.

Contributor:
John Herschel Project
From:
Thomas Maclear
To:
Sir John Herschel
Date:
[1838 or later]
Source of text:
RAS:JH Archive 7/3.15; Reel 8
Summary:

Gives latitude of 'this observatory' used in reduction of 'Comet stars.' Will accept systematic correction in all data to compensate for differences between TM's and Thomas Henderson's data. Instruments are erratic since telescope was moved. Using transit instrument only for sun, planets, and [reduction of Thomas] Brisbane's stars.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
George Gipps
Date:
[26 December 1837]
Source of text:
RS:HS 19.72
Summary:

Intricate enquiries at Paramatta observatory are a waste of time. Instruments are not first class. Energy would be better spent cataloguing smaller magnitude stars and measuring double stars. Urges triangulation survey, important for Asian and Pacific geography, and investigation of weights and measures, to avoid litigation as Australia develops.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
the R.A.S.
Date:
1837-12-16 to 1837-1
Source of text:
R.A.S.M.N., 4 (1838), 121-2
Summary:

Reports observations of the 'remarkable' increase in magnitude of the 'nebulous' star Eta Argus.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
Astronomische Nachrichten
Date:
16] December [1837
Source of text:
Astronomische Nachrichten, 15 (1838), 311-12
Summary:

Reports observations of the 'remarkable' increase in magnitude of the 'nebulous' star Eta Argus.

Contributor:
John Herschel Project
From:
Sir John Herschel
To:
George Gipps
Date:
[27 December 1837]
Source of text:
RS:HS 21.235
Summary:

An extended statement of the importance of the observatory at Parramatta, Australia.

Contributor:
John Herschel Project