How is the lunar phase calculated?

From the angle between the Sun and Moon ecliptic longitudes (phase = Moon − Sun). Illumination follows the astronomical formula (1 − cos angle)/2. Ephemeris are Moshier, the same as the rest of the suite.

Why do I need a city?

To anchor «now» to the chosen timezone. Sun and Moon longitudes are geocentric; the city only defines the calculation instant and date formatting.

Are the phase notes forecasts?

No. They describe the traditional symbolism of each phase — seed, growth, peak, release — without predicting personal events.

Lunar calendar

Current lunar phase, illumination percentage, Moon sign, and dates of the next New and Full Moon.

Quick answer

Aurapure's lunar calendar shows the current phase, illumination percentage, Moon sign, and the next New and Full Moon, computed with Moshier ephemeris. Choose a city to anchor local time: the calculation is free and precise to the minute.

New reading

Lunar phase for this moment

30 October 2026, 18:54 CET · Rome

Phase and illumination from Sun–Moon angle with Moshier ephemeris; upcoming phases found to the minute. Data is verifiable.

Today's phase — you read it in the context of your moment

Symbolic tradition, not a forecast.

Current phase

Waning Gibbous

Illumination: 73.3%

♋︎ Moon in Cancer

Upcoming major phases

Next New Moon: 9 November 2026, 08:04 CET
Next Full Moon: 24 November 2026, 15:55 CET

What this phase symbolises

After the peak, sharing and integration. It symbolises gratitude, transmission, and softening excess. A moment to gather without clinging.

The calculation is accurate (Moshier ephemeris, phases found to the minute). Phase notes are original prose by the Aurapure team.

Keep your reading

Save your reading

Your reading stays free and visible here. Enter your email to keep it and receive it anytime — symbolic tradition, not prediction.

Your horoscope every day, on your own birth chart →

My sky: free and with no account, your birth data stays on this device.

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Eighteenth-century chart of the Moon in two hemispheres with its seas named, and a diagram of the lunar phases between them — Doppelmayr's Moon
Johann Gabriel Doppelmayr, Tabula Selenographica (Nuremberg, Homann, c. 1707): the Moon after Hevelius and Riccioli, its phases at the centre.
Public domain, Wikimedia Commons

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Frequently asked questions

How is the lunar phase calculated?: From the angle between the Sun and Moon ecliptic longitudes (phase = Moon − Sun). Illumination follows the astronomical formula (1 − cos angle)/2. Ephemeris are Moshier, the same as the rest of the suite.
Why do I need a city?: To anchor «now» to the chosen timezone. Sun and Moon longitudes are geocentric; the city only defines the calculation instant and date formatting.
Are the phase notes forecasts?: No. They describe the traditional symbolism of each phase — seed, growth, peak, release — without predicting personal events.