2021 Planetary Ingress Calendar

An ingress is the moment a planet leaves one zodiac sign and enters the next. Each sign carries its own tone, so an ingress marks a shift in how that planet expresses, and the slow outer-planet ingresses (Saturn, Uranus, Neptune, Pluto) are read as larger collective turning points.

Saturn makes its first pass into Aries in late May 2025, retrogrades back into Pisces over the following months, then settles in Aries to stay in early 2026. The forward, back, then forward pattern is normal for a slow planet near a sign boundary, which is why one sign change can carry two or three dates. The calendar lists each exact pass for the year you select.

When a planet changes sign while moving retrograde, it is re-entering a sign it recently left. Slow planets often cross a boundary three times: forward, back while retrograde, then forward again. This calendar flags the retrograde passes so you can tell a first entry from a re-entry.

The outer-planet ones. Jupiter changes sign about once a year, Saturn every two to three years, and Uranus, Neptune, and Pluto take seven years or more, so their ingresses are the dates astrologers watch for shifts in the wider mood. The Moon changes sign every couple of days and is read for short-term timing.

An ephemeris lists every planet's position for every day. This calendar pulls just the sign changes out of that same data and puts them on one timeline, so you can find an exact ingress date without scanning the table. Use the full ephemeris for daily detail and the calendar for sign changes.

Any year from 1850 to 2149. Pick a year to see all of its ingresses, including the exact dates planets like Jupiter and Saturn change signs, with retrograde re-entries marked so a multi-pass crossing reads clearly.

Pick the year, then read the calendar grouped by planet: each entry gives the exact date a planet enters a sign, with retrograde re-entries marked. The summary above the calendar highlights the year's major outer-planet ingresses. For the full picture on any single day, open the ephemeris.