Related terms:
atomic clock
nautical almanac office
states naval observatory flagstaff station
united states naval observatory flagstaff
earth orientation
orpheum theater
hydrographic service
frequency comb
international earth rotation
since the epoch
general relativistic
united kingdom hydrographic office
proleptic gregorian
gas cell
jefferson pier
frequency standard
speed of gravity
there are exactly
Wikipedia sources:
United States Naval Observatory
Washington meridian
Matthew Fontaine Maury
Edwin Taylor Pollock
Star catalogue
List of observatory codes
Flagstaff, Arizona
Time signal
Coordinated Universal Time
Hydrographic office
Simon Newcomb
Foggy Bottom
Tom Van Flandern
George Fenneman
Standard time
Glover Park
Julian day
Atomic clock
Time dilation
Charon (moon)
Nautical almanac
Context for words:
naval
observatory
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