Sunrise/Sunset/Twilight and Moonrise/Moonset/Phase
The programs at the above link have replaced our own ancient version.
The Astronomical Appl
ications Dept. computes and distributes astronomical data of the highest
quality and are regarded as benchmark standards throughout the world. We
hope you enjoy their expanded online data services.
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You can calculate the sunrise, sunset, twilight, moonrise, moonset
and phase times for U.S. locations...For information on USNO software
and almanac products,
look here.
To calculate sun/moon rise/set for other places, if you already know
the longitude and latitude in degrees,
go here instead.
Click here
for information on computation of Sun and Moon phenomena.
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