Groombridge Catalogue

The Groombridge Catalogue is the name by which A Catalog of Circumpolar Stars, compiled by the English astronomer Stephen Groombridge (1755-1832), is commonly known. Groombridge began observations at Blackheath, London, in 1806, and retired from the West Indian trade in 1815 to devote his full attention to the project. His catalogue, listing 4,243 stars located within 50° of the north celestial pole and having apparent magnitudes greater than 9, was published posthumously in 1838.