RGO Archives/RGO 7 contains:
<-- See earlier
275	List of photographic plates
276	Melotte's dark nebulae data
277	Melotte's data
278	Melotte's catalogue of dark areas
279	Astrographic Branch papers
280	Equatorial observations of comets
281	Mean times for comets
282	Observations and technical data
283	Register of official letters
284	Register of Grubb Refractor photographs
285	Technical forms
See later -->

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Papers of William Christie

Title	Equatorial observations of comets
Reference	RGO 7/280
Covering Dates	1888–1892
Extent and Medium	1 volume

Content and context

Equatorial observations of comets and computation of parallax in R.A and N.P.D, with remarks on 'seeing': Comet Barnard, 1888-1889; Comet Davidson, 1889; Comet Brooks, 1889-1890; the conjunction of Mars and Saturn, 1889; Comet Wolf, 1891; and Comet Swift, 1892. Inside the front cover is a note from Christie to Mr Downing, 4 October 1890, on giving the magnifying power used in comet observations in communications to the Royal Astronomical Society and in the Greenwich Observatory.

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Indexed

Index Terms

Downing, Arthur Matthew Weld (1850-1917) Superintendent of the Nautical Almanac

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