Papers on comets, 1723 - 1759
Scope and Contents
Papers on comets and other subjects.
1. 'Observations upon the Comets that appeared in the months of September and October 1757', with reference to unnamed stars and observational technique, including an acknowledgement to Dr Smith's three volumes on optics.
2. Observations to ascertain the 1757 comet's right ascension, its position relative to the Earth and other stars, and its declination, with attendant calculations.
3. Table of observations of the 1759 comet.
4. Table of observations of the 1759-1760 comet, fixing is relative position with reference to the 1744 comet.
5. Notes on the position of the 1744 comet relative to the constellation Pegasus.
6. Notes on the position of the 1748 comet.
7. 'Preface for a paper on the comet of 1743/4', mentioning the observations at Sherborne, but with much of the description lined out.
8. Two identical diagrams of planes.
9. Large drawing of arcs and planes with no key.
10. Observations of the 1743 comet establishing its right ascension and position relative to the constellation Pegasus.
11. Chart of the position of the comet of 1743-1744.
12. Comments on the position of the comet of 1743-1744.
13. Computations on the comet by Gael Morris, contained in a letter dated 20 February 1743.
14. Letter from John Bradley (nephew of James Bradley), 16 April 1744, concerning his computations on the comet at Greenwich.
15. Observations of the comet by the Earl of Macclesfield, February 1744.
16. Observations of the comet made in Paris by Jean Cassini, 1743-1744.
17. Observations of the comet made at Sherborne, with associated tables, 1744.
18. Tables of comparative observations of the 1743-1744 comet as observed by Gael Morris and John Bradley.
19. Notes on the orbit of the comet of 1744.
20. Hypothesis on the orbit of the 1759 comet, with calculations, in the handwriting of Nevil Maskelyne.
21. A problem on finding the position of a ship, with a diagram.
22. Position of the comet of 1759 from the time of its first appearance to the time of its disappearance, written in Nevil Maskelyne's hand.
23. Short note on the position of the 1723 comet, with reference to the comet of 1707-1708 as observed at Bologna.
24. Theory, in Latin, with an equation on the orbit of planets, including calculations headed 'Theorem: Excerpt ex Georg Liebhnectz'.
25. Observations of the 1723 comet.
26. Observations of the 1757 comet.
27. Calculations and equations to find the trajectory of a comet and its computed positions in 1742.
28. Observations of a comet, 1727.
29. Observations of a comet, 1742, by Gael Morris.
30. Observations made at London by Mr Wright of a comet of 1742.
31. Observations of a comet of 1738-1739, including the days when it was actually witnessed.
32. Letter from Gael Morris, 14 March 1742, amending his computations of the comet.
33. 'Kepler's problem resolved by Mr Machin', probably a letter from John Machin to Mr W. Jones, copied by Bradley.
34. Letter from Julius Ascetto of Turin, in English, enquiring into his observations of the Moon, 1750.
35. Letter from Bradley to an unknown person, 2 February 1743, stating that he will be in Oxford during the first week of Lent.
36. Observations of constellations.
37. Calculations written on a letter to Bradley from Dr Lewis.
38. Memoranda on alterations and repairs to a telescope, 1742-1753, from Charles Mason, 1 May 1758.
39. The plotted eclipse of the Sun, 1737.
40. Observations of a comet, April-May 1748.
41. Various calculations.
42. Explanation of the generation of the parabola, with calculations.
- 1723 - 1759
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Language of Materials
Finding aid date
- Cassini, Jean Dominique, 1625 - 1712 (astronomer)
- Kepler, Johann, 1571 - 1630 (astronomer and mathematician)
- Machin, John, 1680 - 1751 (astronomer)
- Maskelyne, Nevil, 1732 - 1811 (astronomer and mathematician)
- Mason, Charles, 1728 - 1786 (astronomer and mathematician)
- Morris, Gael, fl1740 - 1756 (assistant to James Bradley)
- Parker, George, 1697 - 1764 (2nd Earl of Macclesfield, astronomer)