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✦ HORUS ZODIAC

Moon Phase Calculator

Find an estimated lunar phase and illuminated fraction for a chosen date.

Calculation details

How is the phase estimated?

The illuminated fraction is approximated from the angular separation between lunar and solar ecliptic longitudes. It does not predict visibility above your local horizon.

Important accuracy note

These estimates are for cultural and entertainment exploration, not reference astronomy. Verify positions near zodiac boundaries using a specialist ephemeris. The calculator uses tropical zodiac signs and supports 1900–2100.

NASA/JPL — Approximate Planet Positions

Astrology is for entertainment and self-reflection. There is no scientific evidence that zodiac signs predict the future, personality or relationship success.