William Parsons, 3rd Earl of Rosse KP FRS (17 June 1800 – 31 October 1867), was an English engineer and astronomer. He built several giant telescopes. [1 ] [2 ] His 72-inch telescope, built in 1845 and colloquially known as the "Leviathan of…
Mary Parsons, Countess of Rosse (née Field; 14 April 1813 – 1885), was an Anglo-Irish amateur astronomer, architect, furniture designer, and pioneering photographer.