High Quality Content by WIKIPEDIA articles! James Dunlop (31 October 1793 – 22 September 1848) was an astronomer`s assistant who was hired by Sir Thomas Brisbane to work at his private observatory, once located at Paramatta (now named Parramatta), New South Wales, about twenty-three kilometres west of Sydney, Australia during the 1820s and 1830s. Dunlop was mostly a visual observer, doing stellar astrometry work for Brisbane, and after its completion, then independently discovered and catalogued many new telescopic southern double stars and deep-sky objects. He later became the Superintendent of Paramatta Observatory when it was finally sold to the New South Wales Government.