Astronomy Subject Sydney Observatory building Parramatta Observatory Red Hill observatory Dawes, William Dunlop, James Nangle, James Russell, Henry Chamberlain Rümker, Christian Karl Ludwig Scott, William Assistant astronomer Ernest Adderley at the Sydney Observatory looking through 6 inch telescope 18 February 1941 Cover of 'Observations of the transit of Venus, 9 December 1874: made at stations in New South Wales ... under the direction of H.C. Russell, Government Astronomer' 1892 HC Russell, CMG BA FRS FRAS 1898 Mary Allen at the Sydney Observatory using astrographic plates to calculate the relative distances between stars February 1941 Mr HC Russell, the Government Astronomer, The Bulletin 9 October 1880 Observatory and the signalling station, Observatory Hill, Sydney 1870-75 Radio astronomers at Sydney University for the 1952 URSI General Assembly Sydney Observatory (H.C. Russell in doorway) c1860 Sydney Observatory c1900 Sydney Observatory, Sydney 1872 Dr Nick Lomb on the history of the Observatory 2009