The United States Naval Observatory is a scientific and military facility that produces geopositioning, navigation and timekeeping data for the United States Navy and the United States Department of D
An aerial view of the United States Naval Observatory in 2004
United states navy observatory seal
Naval Observatory Flagstaff Station
Number One Observatory Circle, official home of the U.S. vice president.
Old Naval Observatory
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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 pre
United States Naval Observatory
…List of astronomical observatories The Old Naval Observatory USNO Flagstaff Station…
US Naval Observatory
The campus in 1936, looking east. The NIH buildings are along the bottom, the Naval Hospital is at center, and the old observatory is at top left.