Bradley, James, 1692 - 1762 (astronomer)
Found in 65 Collections and/or Records:
Proceedings of the Board of Longitude regarding the recovery of James Bradley's observations, 1791 - 1795
Reductions by H. Breen of observations made by James Bradley at the Royal Observatory during 1743-1750. The volume includes corrections of imperfect transits of stars, index errors of the iron quadrant, and computations for temperature.
Reductions by H. Breen of observations made by James Bradley at the Royal Observatory during 1743-1750. The volume includes computations of Bessell's Table VIII, computations of correction to declination, and computations of A and log A.
Reductions by H. Breen of observations made by James Bradley at the Royal Observatory during 1743-1750. The volume includes computations of precessions in right ascension and computations of the correction to the right ascension arc of Bessel's 36 stars.
Right ascensions of 36 principal stars in sidereal time deduced from James Bradley's observations (1750-1758) and corrected up to 1758. There is also a comparison with the 'Nautical Catalogue' of 1805, apparently to determine values for proper motion.
Various star catalogues compiled by Maskelyne from James Bradley's observations, and computations of the proper motions of some stars.
A Latin star catalogue giving the longitudes and latitudes of the principal stars, 1760; extracts of dates of James Bradley's observations with the mural quadrant; observations of the eclipses of Jupiter's satellites, 1750-1755; and a letter from J. Williams, Mile End, London, 11 November 1801, requesting clarification of some ambiguous elements, with a calculation on the ellipse on the reverse.
Tables on Jupiter's satellites with respect to their mean motion, eclipses, relative position and immersions and emersions, 1760
Notes on how to observe the satellites and use the tables are included, together with copied pieces on Ole Rømer, 'Progressive Motion of Light in the Eclipses of Jupiter's Satellites', from 'Philosophical Transactions', Vol. 1, p. 409; Edmond Halley's hypothesis of Jupiter's satellites and his counter-arguments, from 'Philosophical Transactions', No. 214, November and December 1694; and James Bradley, 'Observations of Jupiter's Satellites'.
An undated text on James Bradley's work on a physical theory of the nutation of the Earth's axis, with three diagrams to illustrate the theories.
Copy of king's warrants of priory seal issuing payments to Dr James Bradley (15 Feb. 1752) and to Nathaniel Bliss (11 Aug. 1762) for their roles as Astronomer Royal.
Miscellaneous works on stars and comets, including:
1. Some results for the constellation Hercules and a table of corrections to the observations.
2. Observations and discovery of the 1723 comet, with an account of its position and path through the heavens; written by James Bradley.
3. Calculations made in 1746 to ascertain the 1744 comet's latitude.
4. Calculations on the positions of the 1744 and 1748 comets.