Western Washington University
College of Sciences and Technology
Physics/Astronomy Dept.
Bellingham, WA USA
Facility
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The Planeteers
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Skywatch
Skywatch Bellingham
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Sun & Moon Calculator
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Astro 101
Astro 101 Homepage
How Big is Big?
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Sun and Moon Rise/Set, and Twilight Calculator
Year
Month
Day
Click here for the definitions
of Sun/Moon rise/set times
and of Civil, Nautical and
Astronomical Twilight
Time Zone, decimal format, negative for west
Longitude, decimal format, negative for west
Latitude, decimal format, negative for south
Number of days to report, 1 year maximum
ON
OFF Daylight Savings Time
The default location and time zone is for Bellingham, WA USA. Click "Now" to automatically enter today's date, or enter your own information and then click "Calculate".
