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Sun and Moon Calculations

All data here was calculated using my program Syzygy, which uses formulas found in "Astronomical Algorithms, 2nd Edition" by Jean Meeus.

Syzygy Source Code


Seasons (Equinoxes and Solstices)

Seasons (Equinoxes and Solstices) 1901-2000

Seasons (Equinoxes and Solstices) 2001-2100

Seasons (Equinoxes and Solstices) 2101-2200

Solar Eclipses

Solar Eclipses 1901-2000

Solar Eclipses 2001-2100

Solar Eclipses 2101-2200

Sun Signs (Tropical)

Sun Signs (Tropical) 1901-2000

Sun Signs (Tropical) 2001-2100

Sun Signs (Tropical) 2101-2200


Moon Phases

Moon Phases 1901-2000

Moon Phases 2001-2100

Moon Phases 2101-2200

Lunar Eclipses

Lunar Eclipses 1901-2000

Lunar Eclipses 2001-2100

Lunar Eclipses 2101-2200

Blue Moons

Blue Moons 1901-2000

Blue Moons 2001-2100

Blue Moons 2101-2200

Black Moons

Black Moons 1901-2000

Black Moons 2001-2100

Black Moons 2101-2200

Blanket Fort Webring

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