Janus: Greenwich Reduction Registers

RGO Archives/RGO 127 contains:
1	''Calculation of Earth's Tabular Place, by Carlini's Solar Tables, Milan Ephemeris 1833"
2	''Computation of North Polar Distances, from Quadrant Observations''
3	''Calculation of North Polar Distances from Circle Observations, by Index Errors: June 1812 to February 1820''
4	''Calculation of North Polar Distances from Circle Observations, by Zenith Points''
5	''Computation of Longitude and Ecliptic Polar Distance, from Right Ascension and North Polar Distance''
6	''Computation of Heliocentric Places'' of Planets
7	''Computation of Planet's Tabular Geocentric Place''
8	''Formulation of Normal Places and Geocentric Errors'' together with ''Formulation of Co-efficients of Normal Heliocentric Errors''
9	''Phenomena of Jupiter's Satellites: 1898 to 1909''
10-13	Star Ledgers

More information

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Greenwich Reduction Registers

Title	''Computation of Heliocentric Places'' of Planets
Reference	RGO 127/6
Covering Dates	1835–1845 (dates inferred)
Extent and Medium	30 volumes; paper

Content and context

These volumes contain planetary observation reduction ''Form Nos. 12, 13, 15, 17 and 18".

RGO Archives/RGO 127/6 contains:

6A/a-b

''Computation of Heliocentric Place of Mercury, by Lindenau's Tables: 1 May 1759 to 16 November 1830''. These volumes contain planetary observation reduction ''Form No. 12". The volumes are an original and a duplicate. Their entries are labelled ''Progressive number 1-246''.
2 volumes; paper; There are losses from insect damage..

1835–1845

''Computation of Heliocentric Place of Venus, by Lindenau's Tables''.
10 volumes; paper.

1835–1845

''Computation of Heliocentric Place of Mars, by Lindenau's Tables''.
4 volumes; paper.

1835–1845

''Computation of Heliocentric Place of Jupiter, from Bouvard's Tables, 1821''.
8 volumes; paper.

1835–1845

''Computation of Heliocentric Place of Saturn, from Bouvard's Tables, 1821''.
4 volumes; paper.

1835–1845

6F/a-b

''Computation of Heliocentric Place of Uranus, from Bouvard's Tables, 1821: December 1753 to November 1830''. These volumes contain planetary observation reduction ''Form No. 18". The entries are labelled ''Progressive number 2-238''. The material in the two volumes is largely duplicated and represents the work of two different calculators.
2 volumes; paper.

1835–1845