(historically spiral nebulae ) was first discovered from Whirlpool Galaxy by William Parsons, 3rd Earl of Rosse (1800-1867) in 1845 apr at Birr Castle, Parsontown, Ireland using the Leviathan of Parsonstown (a 1.83 m diameter telescope) ( CK-366 ; No-435--437 ). Himself circulated a similar sketch at the 1845 jun meeting