This is the free portion of the full article. The full article is available to licensed users only.
How do I get access?

Dawes, William Rutter

Born London, England, 19 March 1799

Died Haddenham, Buckinghamshire, England, 15 February 1868

William Rutter Dawes is known for the empirical formula he devised to determine the resolving power of a telescope (Dawes Limit), his extraordinarily keen vision that earned him the sobriquet "eagle‐eyed," and the care and skill with which he conducted his observations of celestial objects. These qualities distinguished him as one of the finest observational astronomers of his day.

Dawes was born at Christ's Hospital, where his father William Dawes was mathematical master. William Dawes had been Government Astronomer on the first expedition to Botany Bay in 1787, and had married Judith Rutter in 1792 after his return to England. William Rutter lost his mother at an early age, and following his father's third official posting to Sierra Leone as that colony's Governor in 1801, was sent to live with his grandfather in Portsmouth. In 1807, William Rutter's care became