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searching for Old Naval Observatory 3 found (25 total)

Washington Mean Time (407 words) [view diff] exact match in snippet view article find links to article

defined on 28 September 1850 by the United States Congress. The Old Naval Observatory is now on the grounds of the United States Navy Bureau of Medicine

Prime meridian (4,749 words) [view diff] exact match in snippet view article find links to article

NAD 27). If NAD27, the latter would be 77°03′05.194″ W (NAD 83) Old Naval Observatory meridian 77°02′11.56299″ W (NAD 83), 77°02′11.55811″ W (NAD 83)

Matthew Fontaine Maury (5,159 words) [view diff] exact match in snippet view article find links to article

Maury Herman, Jan K. (1984). A Hilltop in Foggy Bottom: Home of the Old Naval Observatory and the Navy Medical Department. Naval Medical Department. Williams