Dreyer, Johan Ludvig Emil

The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

Dreyer, Johan Ludvig Emil


(also John Louis Dreyer). Born Feb. 13, 1852, in Copenhagen; died Sept. 14, 1926, in Oxford. Danish astronomer.

Beginning in 1874, Dreyer worked in Ireland, and from 1882 to 1916 he was director of the observatory in the city of Armagh. In 1923-24 he was president of the Royal Astronomical Society in England. He compiled a general catalog (NGC) of more than 13,000 nebulas and star clusters. He prepared and partially published the complete collected works of Tycho Brahe as well as his biography (1890); he also published works of W. Herschel. Dreyer was the author of a number of works on the history of astronomy.


“New General Catalogue of Nebulae and Clusters of Stars.” Memoirs of the Royal Astronomical Society, 1887, vol. 49.
“Index Catalogue of Nebulae.” Ibid., 1895, vol. 51.
“Second Index Catalogue of Nebulae.” Ibid., 1908, vol. 59.
The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.