Walker, William, 1767-1816.
William Walker volume of celestial observations, 1796-1799.
Manuscript codex contains mathematical and textual descriptions of Walker's celestial observations for the period Jan. 10, 1796 through May [12?], 1799.
Interspersed throughout the calculations, coordinates and text are drawings of "curious" marks and spots on the surface of the Moon and Jupiter, two pages of sketches describing the appearance of a comet in August, 1797, and sketches of a telescope. The final four leaves contain tables listing readings from the "chronometer clocks" in London and at Troston Hall, 1796-1799. John Harrison (1693-1776) and the problems of moisture and humidity in timepieces are also mentioned in the text.
British astronomer, son of inventor and astronomer Adam Walker (1731-1821), and compiler/editor of his father's lectures published as "An Account of the Eidouranion, or Transparent Orrery; invented by A. Walker" and "An Epitome of Astronomy, with the new discoveries."
Astronomy -- Observations -- 18th century.
Astronomy -- England -- Early works to 1800.
Astronomy -- Charts, diagrams, etc.
Chronometers -- Charts, diagrams, etc.
Planets -- Observations -- Early works to 1800.
Stars -- Observations -- Early works to 1800.
Moon -- Observations -- Early works to 1800.
Astronomical charts. aat
Manuscripts. aat
Logs (records). aat
AIP-ICOS
University of Michigan. Special Collections Library. 711 Hatcher Graduate Library, Ann Arbor, Michigan 48109-1205, USA.