Describes his observational activities, especially the discovery of the variable nature of Eta Argo, and the rediscovery of the sixth satellite of Saturn.
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Describes his observational activities, especially the discovery of the variable nature of Eta Argo, and the rediscovery of the sixth satellite of Saturn.
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.]
More about lack of success of exhibition, and about publication of observations [see AS's 1837-8-27].
Observations regarding the nebulous star 1281.
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.
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.
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.
Reports observations of the 'remarkable' increase in magnitude of the 'nebulous' star Eta Argus.
Reports observations of the 'remarkable' increase in magnitude of the 'nebulous' star Eta Argus.
An extended statement of the importance of the observatory at Parramatta, Australia.