Horoscope / Moon phase
Moon Phase
Calculate the Moon phase, illuminated fraction and lunar age from the Sun and Moon's geocentric ecliptic longitudes.
Result summary
Use the tool to generate your result.
Select a date to calculate its phase at 12:00 UTC. Calculation details appear with the result.
Deepen the result
Moon Phase Guide
A moon-phase note for intention, release, emotion, body rhythm, and reflective action.
$16 USD
Custom PDF by email, paid securely with PayPal.
View report details