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Calendar and Ephemeris

The book "Calendar and Ephemeris" contains information on national holidays, 24 sekki and zassetsu, apparent position of Sun, Moon and planets, lunar phases, times of sunrise and sunset, solar and lunar eclipses, planetary phenomena, etc. This page allows web access to its extended version. Since this web version is based on the latest theory, some values might be different from those in the published issues.

Web Version

Calendar
24 Sekki (including Equinoxes and Solstices), Zassetsu
Phases of the Moon
Celestial Phenomena
Sun
Moon
Planets
Dwarf Planets, Asteroids
Stars
Eclipse, Transit, Occultation
Fundamental Values
Topics (Japanese Only)