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The United States Naval Observatory (USNO) is a scientific and military facility that produces geopositioning, navigation and timekeeping data for the United States Navy and the United States Department of Defense. [2]
The Naval Observatory is located 2.5 miles (4 km) from the White House [6] and directly to its south is the British Embassy. [7] The observatory was moved from Foggy Bottom to its present location the same year the house was completed and 12 observatory superintendents lived in what was then known as The Superintendent's House.
The United States Naval Observatory Flagstaff Station (NOFS), is an astronomical observatory near Flagstaff, Arizona, US. It is the national dark-sky observing facility under the United States Naval Observatory (USNO). [1] NOFS and USNO combine as the Celestial Reference Frame [2] manager for the U.S. Secretary of Defense. [3] [4]
The Old Naval Observatory is a historic site at 23rd and E Street in Northwest, Washington, D.C. It is where the United States Naval Observatory was located from 1844 to 1893, when it moved to its present grounds. The original observatory building, built 1839-40, still stands, and is a designated National Historic Landmark as of 1965. [2]
The fourth meridian was through the clock room of the new Naval Observatory, 2.3 mi (3.7 km) northwest of the White House, at 77°3′56.7″W (1897) or 77°4′2.24″W (NAD 27) or 77°4′1.16″W (NAD 83). The clock room is a small building at the exact center of the 1,000 ft (300 m) radius observatory grounds, whose northern entrance is at ...
Naval Base San Diego; Naval Base Coronado. Naval Amphibious Base Coronado; Naval Air Station North Island; Naval Outlying Field Imperial Beach; Naval Auxiliary Landing Field San Clemente Island; Naval Base Point Loma; Naval Medical Center San Diego; Naval Air Facility El Centro; Naval Air Station Lemoore; Naval Support Activity Monterey [1 ...
After crossing Rock Creek over Charles C. Glover Memorial Bridge, it curves around the United States Naval Observatory and Number One Observatory Circle, the official residence of the vice President of the United States, which forms the southwest boundary of the Massachusetts Heights neighborhood.
The United States Hydrographic Office (USHO) prepared and published maps, charts, and nautical books required in navigation. The office was established by an act of 21 June 1866 as part of the Bureau of Navigation, Department of the Navy. It was transferred to the Department of Defense on 10 August 1949.