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U.S. Naval Observatory (USNO)

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Directory > Government > U.S. Government > Military > Navy > U.S. Naval Observatory (USNO)


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Sites 1 - 6 of 6
  • Time Service Department
    Provides the official time for the Navy, for the Department of Defense, and for the United States.
    tycho.usno.navy.mil
  • U.S. Naval Observatory (USNO)
    The U.S. Naval Observatory is the preeminent authority in the areas of precise time and astronomy.
    www.usno.navy.mil
  • Phases of the Moon
    Look up moon phase information for any year from 1700-2035. From the U.S. Naval Observatory's Astronomical Applications Department.
    aa.usno.navy.mil/data/docs/MoonPhase.html
  • Data Services
    Information on sunrise, sunset, moonrise, moon illumination, positions of the sun and moon, celestial navigation, and more.
    aa.usno.navy.mil/data
  • Library
    Describes the library's collections and history and offers online databases and links to other libraries and astronomical resources.
    www.usno.navy.mil/library/index.html
  • Astrographic Catalogue
    Reference catalogue giving measurements and positions of stars brighter than 11th magnitude. Produced by the U.S. Naval Observatory and Copenhagen University Observatory.
    ad.usno.navy.mil/proj/AC
 



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