The U.S. Naval Observatory (USNO) provides a wide range of astronomical data and products, and serves as the official source of time for the U.S. Department of Defense, and a standard of time for...

The United States Naval Observatory (USNO) is a scientific and military facility that produces geopositioning, navigation and timekeeping data for the United States Navy and the United States Department of Defense. [2]

Jan 20, 2025 · But where does the vice president live? The vice presidential residence is at Number One Observatory Circle at the United States Naval Observatory.

Welcome to the web pages of the Astronomical Applications Department of the U.S. Naval Observatory . Our products -- almanacs, software, and web services -- provide precise astronomical...

The U.S. Naval Observatory is one of the oldest scientific agencies in the country. It was established in 1830 as the Depot of Charts and Instruments. Its primary mission was to care for...

Today, the U.S. Naval Observatory is the preeminent authority in the areas of time keeping and celestial observing; determining and distributing the timing and astronomical data required...

The U.S. Naval Observatory performs an essential scientific role for the United States, the Navy, and the Department of Defense. Its mission includes determining the positions and...

May 16, 2023 · Today, the USNO continues to provide time and positioning information, and the instruments the facility uses—descendants of its earliest telescopes and chronometers—are the most advanced and...

United States Naval Observatory (USNO), in Washington, D.C., an official source, with the U.S. National Institute of Standards and Technology (NIST; formerly the National Bureau of Standards), for standard time in the United States.

Quietly situated on the grounds of the United States Naval Observatory (USNO) in our nation’s capital lies Number One Observatory Circle, the official residence of the vice president of the United States.