Scope and Contents 'Calculationes 1694', containing calculations and tables relating to the Sun, Moon, fixed stars, planets and predictions for Jupiter's satellites, 167 folios. There is an Horatian ode (1r), collected tables of refractions (14v-18r), work on Saturn by William Bossley (between 54v and 97r), lists of borrowers of books (164v, 166r), and an incomplete contents' list (166r). Much of the writing is in Flamsteed's hand, although some tables in the later half of the volume bear James Hodgson's name...

Scope and Contents

A untitled book of calculations and tables, 182 folios, including three sets of lunar calculations (1r-78r), related tables (86r-103v), and planetary calculations (158v-181v). Most of the volume is in Flamsteed's hand, although some of the tables are by James Hodgson. The lunar work is dated 16 April 1699 - 16 April 1700. The remaining material is dated up to circa 30 January 1711.

Scope and Contents

Calculations relating to Jupiter's satellites, continued from RGO 1/48C. The writing is probably in James Hodgson's hand, with notes in Flamsteed's hand at the beginning and end. The contents are undated, but refer to 1700-1706.

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'Catalogus Fixarum', containing (zodiacal) star positions (54v-73v), with 'Variationum Tabula proportionalis ad Annos 20' ('A proportional table of variations for 20 years') (74v-75v) and 'Ad Explorandum Instrumenti errorculos' ('For exploring the small errors of the Instrument') (75v-76r), 26 folios. The writing is mainly in James Hodgson's hand, with an introduction and additions by Flamsteed.

Scope and Contents A collection of nonagesimal, tidal and others tables, 166 folios. The writing is in various hands, beginning with Flamsteed's, and featuring the names of James Hudson (Hodgson), Alex Dennett and (in doodles) James, Mary, Isaac, Catherine Queen and Edward Vernon. The contents are dated between 16 August 1683 and 21 November 1705, but many of the items do not have dates. Flamsteed's pagination suggests that six folios have been lost at the beginning.The volume including the following...

Scope and Contents Flamsteed's drafts of letters, and letters received by others, including Flamsteed to Glen about earthquakes [1692] (95rv); an incomplete reply [to Wren?] to criticisms of Flamsteed's piece on stellar parallax [c. 1700]; Flamsteed [to Pepys?] on the training of naval officers [c. 1697] (99rv); a complaint about pews in Greenwich church [c. 1718] (100r); John Vermuyden to Steven Flamsteed, 1673 (101r); anon. to Immanuel Halton, 1676 (103r); William Balle to Sir Jonas Moore, 1677 (104rv);...

Scope and Contents

'Diarium Observationum Astronomicarum Coelestium' ('Journal of astronomical observations of the heavens'): first notes of observations with the mural arc, 18 January 1694 - 16 March 1698, mainly in the hands of the assistants Samuel Clowes and James Hodgson, though Flamsteed's also appears, 180 folios. There are entries noting visits by Peter the Great (160r, 164v) and other national and personal events (e.g. 24r, 39r, 176r). Inside the back cover is a signed statement by Isaac Newton.

Scope and Contents

'Diarium Observationum Coelestium' ('Journal of observations of the heavens'): first notes of observations with the mural arc, 18 March 1698 - 17 November 1702, with notes to 7 June 1708, mainly in Hodgson's hand, although Flamsteed and Thomas Weston's also appear, 187 folios. The volume includes notes about early letters (2v) and on magnetic variation (47v-48r), and tables of errors of the mural arc (180v-182v).

Scope and Contents Accounts and other records of a Derbyshire lead-mining concern, March 1674 - January 1688 (4v-97r, 216r-221r, 225v-236v), written in Steven Flamsteed's hand, and featuring his signature and that of Cornelius Vermuyden. The book was used subsequently by John Flamsteed for copies, written in various hands, of letters dating from 10 July 1688 onwards, chiefly January 1698 - 25 April 1719. There are notes about negotiations over the publication of Flamsteed's works (passim between 121r and 132r,...

Scope and Contents

Lunar tables, with calculations from lunar data of 1694-1695 and notes on Jeremiah Horrocks's lunar theory. There are also tables of right ascensions and polar distances for inscribing lines of latitude and longitude on charts of the constellations. The tables are not in Flamsteed's hand, but possibly that of James Hodgson. The contents date from 1701-1708, with the exception of the notes, which are later.

Scope and Contents

'Apographa' ('Exact copies'), second part: 'Observationes Coelestes' made between January 1694 and December 1703, with collected data from various sources and notes up to at least 1709, 185 folios. The volume includes work on instrument errors (2v-3r, 23r); observations of Mars compared with the Rudolphine Tables (172v-173r); and Flamsteed's 'Account of my Ancestors' (185v). The writing is mainly in James Hodgson's hand, but that of Thomas Weston also appears.

Scope and Contents

'Zodiacus Britannicus', a compilation concerning the fixed stars, including a copy of observations made with the mural arc between November 1689 and April 1704, with related calculations and deduced places, 226 folios. Zodiacal constellations appear first (4v-87v), followed by others, often incomplete (88r-221v), and a table of the equation of time (224r). The volume was compiled by Flamsteed and John Hodgson, probably during 1695-1701, with additions up to 1719.

Scope and Contents

Lunar, planetary and stellar calculations and tables compiled from around 1694 onwards using data of 1689-1715, 185 folios (foliated continuously). The volumes are in various hands, including Flamsteed's and James Hodgson's.

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Observations and calculations relating mainly to the fixed stars, 245 folios (foliated continuously). The writing is in the hands of Flamsteed and James Hodgson.

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Observations in the hands of James Hodgson and Joseph Crosthwait.

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Stellar, lunar and planetary observations and calculations, 307 folios (foliated continuously). Much of the text is in James Hodgson's hand, although Flamsteed's handwriting also features.

Scope and Contents Examination of John Flamsteed and James Bradley's observations, primarily by John Howe.1. Distances from the Pole Star to the Pole based on observations by Tycho Brahe in 1583 and by Flamsteed in 1690, compiled by Howe, 31 May 1708.2. The precession of the equinox inferred from Flamsteed's 1690 observations, compiled by Howe, 13 December 1770.3. Apparent right ascension of the star Alpha Aquilae, 1753-1756, and other stars.4. A star catalogue showing proper...

Scope and Contents

Catalogues of the fixed stars and related material, in the hands of Flamsteed and James Hodgson, 171 folios. The front board is dated 1694, and the main sections were compiled in 1699, 1709 and 1696-1697, with an added note dated November 1712. The volume includes a copy of Flamsteed's 1686 catalogue of 130 principal fixed stars (129v-130v).

Scope and Contents

'Mr Lee's [Luke Leigh] Calculations' of stellar positions and stellar calculations, with a few notes, 139 folios (foliated continuously). The writing is in various hands, including those of Flamsteed and James Hodgson.

Scope and Contents

Three notebooks and three loose sheets of stellar positions, mostly undated, in the hands of Flamsteed, James Hodgson and Joseph Crosthwait, 92 folios (foliated continuously).

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'Tabulae Astronomicae Subsidiariae utilissim[ae]' ('Most useful subsidiary astronomical tables') for the calculation of celestial coordinates, 21 folios. There are diagrams (8r) and a prefixed section entitled 'Distantiae Eclipticae a Polo ad gradum quemlibet Ascentionis Rectae' ('Ecliptic distances from the pole for whatever degree of right ascension'). The contents are dated 1694-1695, but there may be later additions. The writing is in the hands of Flamsteed, James Hodgson and others.