United States Naval Observatory Flagstaff Station was created in 1955.

Dennis D. McCarthy has written:

'The determination of universal time at the U.S. Naval Observatory' -- subject(s): Systems and standards, Time, United States Naval Observatory

I look it up at the Astronomical Applications section of the web site of the United States Naval Observatory.

Charon, the moon of Pluto, was discovered in 1978 at the United States Naval Observatory Flagstaff Station.

No. Congress designated a house on the southeast corner of 34th Street and Massachusetts Avenue in Washington DC where the vice president of the United States would live. Located on the grounds of the United States Naval Observatory, the house was built in 1893 for the Superintendent of the Observatory. The white 19th Century house at Number One Observatory Circle in northwestern Washington, D.C., was built in 1893.