|
gptkbp:instanceOf
|
astronomer
|
|
gptkbp:address
|
3450 Massachusetts Avenue NW, Washington, D.C.
|
|
gptkbp:affiliatedWith
|
gptkb:United_States_Department_of_Defense
|
|
gptkbp:archiveType
|
historical astronomical data
|
|
gptkbp:associatedWith
|
gptkb:Naval_Observatory_Time_Service_Department
gptkb:Naval_Observatory_Vector_Astrometry_Subsystem_(NOVAS)
gptkb:United_States_Naval_Observatory_Flagstaff_Station_(NOFS)
|
|
gptkbp:buildingType
|
gptkb:residence
astronomer
|
|
gptkbp:contributedTo
|
gptkb:Coordinated_Universal_Time_(UTC)
gptkb:Global_Positioning_System_(GPS)
gptkb:International_Atomic_Time_(TAI)
gptkb:International_Earth_Rotation_and_Reference_Systems_Service_(IERS)
|
|
gptkbp:coordinates
|
38.9215°N 77.0669°W
|
|
gptkbp:country
|
gptkb:United_States
|
|
gptkbp:director
|
Dr. Frank J. Cepollina (as of 2023)
|
|
gptkbp:discoveredBy
|
gptkb:moons_of_Mars_(Phobos_and_Deimos)
|
|
gptkbp:employs
|
gptkb:engineer
astronomer
support staff
technicians
|
|
gptkbp:established
|
1830
|
|
gptkbp:historicalName
|
gptkb:Depot_of_Charts_and_Instruments
|
|
https://www.w3.org/2000/01/rdf-schema#label
|
U.S. Naval Observatory
|
|
gptkbp:location
|
gptkb:Washington,_D.C.
|
|
gptkbp:manages
|
gptkb:atomic_clocks
celestial reference frames
|
|
gptkbp:notableBuilding
|
gptkb:Vice_President's_Residence
|
|
gptkbp:notableEvent
|
discovery of Mars' moons (1877)
|
|
gptkbp:notableFor
|
gptkb:photographic_zenith_tube
6-inch transit circle
12-inch equatorial telescope
|
|
gptkbp:notablePerson
|
gptkb:Asaph_Hall
|
|
gptkbp:openToPublic
|
no (except for special events)
|
|
gptkbp:operatedBy
|
gptkb:United_States_Navy
|
|
gptkbp:parentOrganization
|
gptkb:United_States_Navy
|
|
gptkbp:primaryUse
|
astronomical observations
navigation support
timekeeping
|
|
gptkbp:provides
|
gptkb:astronomy
gptkb:Master_Clock_for_the_United_States
celestial navigation data
|
|
gptkbp:publishes
|
gptkb:The_Air_Almanac
gptkb:The_American_Ephemeris_and_Nautical_Almanac
gptkb:The_Astronomical_Almanac
gptkb:The_Nautical_Almanac
|
|
gptkbp:renamed
|
1844
|
|
gptkbp:telescopeType
|
26-inch refractor
|
|
gptkbp:website
|
https://www.usno.navy.mil/
|
|
gptkbp:bfsParent
|
gptkb:Charles_Howard_Hinton
gptkb:The_Astronomical_Almanac
gptkb:National_Historic_Landmarks_in_Washington,_D.C.
|
|
gptkbp:bfsLayer
|
6
|