The New Student's Reference Work/Naval Observatory of the United States, The
Naval Observ′atory of the United States, The, an institution of the Federal government, is located at Georgetown, District of Columbia, under the superintendence of the bureau of navigation. It was established in 1842, and then called the Depot for Naval Charts and Instruments. The Nautical Almanac, issued yearly, is compiled at this place. The present equipment of this observatory is probably surpassed by no other in the world for the performance of the important functions intrusted to it.