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Atomic clock ensemble at the U.S. Naval Observatory. The U.S. Naval Observatory operates two “Master Clock” facilities, one in Washington, DC, and the other at Schriever SFB near Colorado Springs, CO. The primary facility, in Washington, D.C. maintains 57 HP/Agilent/Symmetricom 5071A-001 high performance cesium atomic clocks and 24 hydrogen ...
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 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 shift in focus from navigation to personnel management, brought a change in name during World War II. In 1942, the Bureau of Navigation was redesignated the Bureau of Naval Personnel (BuPers), under which name it still exists today. The Hydrographic Office and the Naval Observatory were transferred to the Office of the Chief of Naval ...
The American Ephemeris and Nautical Almanac was published for the years 1855 to 1980, containing information necessary for astronomers, surveyors, and navigators. It was based on the original British publication, The Nautical Almanac and Astronomical Ephemeris, with which it merged to form The Astronomical Almanac, published from the year 1981 to the present.
Maury was one of the principal advocates for founding a national observatory and he appealed to a science enthusiast and former U.S. president, Representative John Quincy Adams, for the creation of what would eventually become the Naval Observatory. Maury occasionally hosted Adams, who enjoyed astronomy as an avocation, at the Naval Observatory.
In 1833, for his survey of Narragansett Bay, he was placed in charge of the Navy's Department of Charts and Instruments, out of which developed the Naval Observatory and Hydrographic Office. Wilkes' interdisciplinary expedition (1838–1842) set a physical oceanography benchmark for the office's first superintendent Matthew Fontaine Maury .
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