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                         IMCCE - Observatoire de Paris

                               PHASES OF THE MOON

                                1998, September
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/pub/ephem/moon/moonphas   (Gerard Francou)


CONTENTS :

Phases of the Moon between 1990 and 2009 in dynamical time.

New Moon :
The apparent geocentric longitude of the Moon is equal to the apparent
geocentric longitude of the Sun.

First Quarter :
The excess of the apparent geocentric longitude of the Moon over the
apparent geocentric longitude of the Sun is equal to 90 degrees.

Full Moon :
The excess of the apparent geocentric longitude of the Moon over the
apparent geocentric longitude of the Sun is equal to 180 degrees.

Last Quarter :
The excess of the apparent geocentric longitude of the Moon over the
apparent geocentric longitude of the Sun is equal to 270 degrees.


SOURCE :

The phases of the Moon are computed with the lunar solution ELP 2000-85 :
Chapront-Touze M., Chapront J.
Astron. Astrophys. 190, 342 (1988).


FILES :

1990-94 : Phases of the Moon between 1990 and 1994.
1995-99 : Phases of the Moon between 1995 and 1999.
2000-04 : Phases of the Moon between 2000 and 2004.
2005-09 : Phases of the Moon between 2005 and 2009.

End of document