United States Naval Observatory
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. Established in 1830 as the Depot of Charts and Instruments, it is one of the oldest scientific agencies in the United States, and remains the country's leading facility for astronomical and timing data.The observatory is located in Northwest Washington, D.C. at the northwestern end of Embassy Row. It is among the few pre-20th century astronomical observatories located in an urban area. In 1893, in an effort to escape light pollution, it was relocated from Foggy Bottom near the city's center, to its Northwest Washington, D.C. location.
The USNO has conducted significant scientific studies throughout its history, including measuring the speed of light, observing solar eclipses, and discovering the moons of Mars. Its achievements include providing data for the first radio time signals, constructing some of the earliest and most accurate telescopes of their kind, and helping develop universal time. The Naval Observatory performs radio VLBI-based positions of quasars for astrometry and geodesy with numerous global collaborators (IERS), in order to produce Earth orientation parameters and to realize the celestial reference system (ICRF).
Aside from its scientific mission, since the 1970s the Naval Observatory campus hosts the official residence of the vice president of the United States. Provided by Wikipedia
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by Lukac, Marie R.
Washington, D.C. : U.S. Naval Observatory, 2000
“...United States Naval Observatory...”Washington, D.C. : U.S. Naval Observatory, 2000
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by Eastman, John R. (John Robie), 1836-1913
Washington : Govt. Print. Off., 1873
“...United States Naval Observatory...”Washington : Govt. Print. Off., 1873
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by Maury, Matthew Fontaine, 1806-1873
Washington : W. A. Harris, 1858
8th edition--enlarged and improved.
“...United States Naval Observatory...”Washington : W. A. Harris, 1858
8th edition--enlarged and improved.
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by Maury, Matthew Fontaine, 1806-1873
Washington : W. A. Harris, 1858
8th edition--enlarged and improved.
“...United States Naval Observatory...”Washington : W. A. Harris, 1858
8th edition--enlarged and improved.
This item is not available through EZBorrow. Please contact your institution’s interlibrary loan office for further assistance.
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Washington, 1881
“...United States Naval Observatory...”This item is not available through EZBorrow. Please contact your institution’s interlibrary loan office for further assistance.
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Washington : U.S. Dept. of Defense, Dept. of the Navy, Naval Observatory, 1976
“...United States Naval Observatory...”This item is not available through EZBorrow. Please contact your institution’s interlibrary loan office for further assistance.
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by Cleere, Gail S.
Washington, D.C. : Dept. of the Navy, U.S. Naval Observatory : For sale by the Supt. of Docs., U.S. G.P.O., 1985
“...United States Naval Observatory...”Washington, D.C. : Dept. of the Navy, U.S. Naval Observatory : For sale by the Supt. of Docs., U.S. G.P.O., 1985
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by Meiller, Victoria Louise Fahnkow, 1916-
Washington, D.C. : U.S. Naval Observatory, 1980
“...United States Naval Observatory...”Washington, D.C. : U.S. Naval Observatory, 1980
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by Kaplan, George H.
Washington, D.C. : U.S. Naval Observatory, 1980
“...United States Naval Observatory...”Washington, D.C. : U.S. Naval Observatory, 1980
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Washington : Gov't print. off., 1872
“...United States Naval Observatory...”This item is not available through EZBorrow. Please contact your institution’s interlibrary loan office for further assistance.
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Washington : G. W. Bowman, printer, 1860
“...United States Naval Observatory...”This item is not available through EZBorrow. Please contact your institution’s interlibrary loan office for further assistance.
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Reports of foreign societies on awarding medals to the American Arctic explorers, Kane, Hayes, Hall.
[Washington] : U.S. Naval Observatory, 1876
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Washington : G.P.O., 1889
Third edition, revised and corrected /
“...United States Naval Observatory...”Third edition, revised and corrected /
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[Washington] : [Gales & Seaton, Printers], 1846
“...United States Naval Observatory...”This item is not available through EZBorrow. Please contact your institution’s interlibrary loan office for further assistance.
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by Gillis, James Melville, 1811-1865
Washington : Gales and Seaton, 1845
“...United States Naval Observatory...”Washington : Gales and Seaton, 1845
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