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Lunar Return Calculator

A Lunar Return chart marks the Moon's exact return to its natal longitude, roughly every 27 days. Find the next return from a chosen UTC date and explore the chart used for a monthly astrological overview.

Moon · Moon Return
Return body

Type at least two characters. Select one catalogued asteroid; availability depends on the birth and return dates.

Birth details

However you write them, that's how you'll be spoken to. Nothing in your chart depends on it — the sky never asks who you are. Left blank, readings stay neutral rather than guess.

Return Location *

The place where you will be at the return sets the chart's houses and angles. It does not change the geocentric return moment.

Search begins at 00:00 UTC on this date.

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Your Moon return chart appears here

A Lunar Return chart marks the Moon's exact return to its natal longitude, roughly every 27 days. Find the next return from a chosen UTC date and explore the chart used for a monthly astrological overview.

1. Enter birth data — Known date, time, and birth place locate your natal Moon longitude.

2. Choose the return location — This sets the return Ascendant and house angles at the exact event.

3. Calculate — Reveal the exact moment of the celestial return, the return chart wheel, planetary positions, cusps, and aspects.

How to calculate a Lunar Return

Enter your known birth date, time and place, choose a search-from date, then choose the return place. Moira finds the Moon's next exact geocentric tropical return on or after 00:00 UTC on that date. The roughly 27-day lunar cycle is different from the 29.5-day New Moon cycle.

What the chart shows

The result gives the exact return time in UTC and Julian Day, the natal target longitude, the selected body's placement, and a complete chart wheel with planetary positions, houses and aspects. The return place sets houses and angles; it does not change the geocentric event time. Solar and Lunar results can also include their existing astrological overviews.

Monthly search example

If you choose 1 November 2026, the search begins at 00:00 UTC that day and returns the next exact Moon crossing. To investigate the following monthly cycle, calculate again from a date after the previous returned instant.

Method and availability

Moira calculates tropical, geocentric ecliptic longitude returns using its exact event solver. Major-planet calculations use the website's JPL DE440 ephemeris; asteroid positions depend on the engine's admitted small-body kernels. A catalog listing does not guarantee coverage at every birth or return date. Unknown birth times require a known clock time before calculation, and unavailable bodies or dates produce an error.

This release calculates one return chart. Saving stores your birth data for reuse; it does not archive the calculated return packet.