USNO Circular 169
Astronomical Applications Dept. Astronomical Applications Dept.
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Phases of the Moon 2000–2049

Richard E. Schmidt
U.S. Naval Observatory
November 1986


This circular provides the times of the phases of the Moon, expressed in Terrestrial Dynamical Time (TDT), for the years 2000–2049. The basis for this circular is the Jet Propulsion Laboratory (JPL) ephemeris designated DE200/LE200, which was also used for The Astronomical Almanac when the circular was published.

Note: USNO web services supersede this circular. Please visit the Phases of the Moon web page for the current dates and times. The Astronomical Almanac now uses JPL ephemeris DE405/LE405.

Obtaining a Copy:

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