Pluto goes retrograde once a year, and stays backwards for more than five months. That is 43.1% of all days, the second largest figure in the zodiac, behind Neptune retrograde by a tenth of a point. The times below are Brasília time and come from the same ephemeris this site uses to build charts.

In Aquarius, from May 6, 2026 to October 15, 2026, with the shadow from January 12, 2026 to February 6, 2027; in Aquarius, from May 8, 2027 to October 18, 2027, with the shadow from January 13, 2027 to February 9, 2028; in Aquarius, from May 9, 2028 to October 19, 2028, with the shadow from January 15, 2028 to February 10, 2029; in Aquarius, from May 11, 2029 to October 21, 2029, with the shadow from January 16, 2029 to February 12, 2030; in Aquarius, from May 12, 2030 to October 23, 2030, with the shadow from January 17, 2030 to February 14, 2031; in Aquarius, from May 14, 2031 to October 24, 2031, with the shadow from January 19, 2031 to February 16, 2032; in Aquarius, from May 15, 2032 to October 25, 2032, with the shadow from January 21, 2032 to February 17, 2033; in Aquarius, from May 17, 2033 to October 27, 2033, with the shadow from January 21, 2033 to February 19, 2034; and in Aquarius, from May 19, 2034 to October 29, 2034, with the shadow from January 23, 2034 to February 21, 2035.

A single sign across nine periods, and the date moving two days a year. It is the portrait of Pluto in Aquarius, which takes up two decades. If you are looking for what tells one year from another, it is not here: it is in the house of your chart where those degrees fall.

The length grows every decade, and this is the only retrogradation calculation on this site whose current numbers would not fit the range of the last century, and it is not a calculation error.

From 1930 to 2025, the 95 periods lasted between 156.2 and 162.5 days. Those from 2026 to 2045 run from 162.4 to 164.2. The decade averages tell the whole story:

In the 1930s, the average length was 161.4 days, with Pluto 41.2 astronomical units from the Sun; in the 1970s, 156.4 days, at 31.6; in the 1980s, 156.4 days, at 29.9; in the 2000s, 159.2 days, at 30.3; in the 2020s, 162.4 days, at 34.1; and in the 2040s, 164.0 days, at 40.4.

The length and the distance rise and fall together, and the cause is the most lopsided orbit in the solar system. Pluto passed the point closest to the Sun in 1989, at 29.7 astronomical units, closer in than Neptune has been in its whole life. Since then it has been moving away, and it will reach 40.4 in 2045. The farther out the planet is, the slower it appears to move, and the longer the Earth takes to undo the overtaking: the loop grows.

That is why the automatic rule that checks these dates was measured from 1930 to 2046, and not up to today. A rule carrying last century's range would fail the twenty CORRECT periods on this page, and failing correct text is the worst thing a check can do.

The stretch Pluto redoes backwards runs between 2.2 and 2.8 degrees. That is five and a half months to undo less than three degrees of sky, under a tenth of a sign.

Compare it with Mercury retrograde, which redoes twelve degrees in three weeks, and the difference in kind becomes clear. In Mercury the retrograde is an event with a beginning, a middle and an end inside a month. In Pluto it is the way of walking of a planet that spends twenty years in one sign: it advances two degrees a year, and spends almost half of that year going back.

A phenomenon that takes up 43% of all days tells no day apart from the others, and it is what this site says on every page of this family. What astrology reads in Pluto is the position, the degree, the house, the aspect it makes to your chart, and not the direction of travel. The subject has its own page in what a retrograde planet is.

The shadow is the patch of sky the planet covers moving forward before redoing it backwards. In Pluto it lasts from 390 to 398 days, and the next shadow opens a month before the previous one closes: as with Neptune, there is no day on which it stands outside one.

This is worth saying out loud rather than repeating the word out of habit: a mark that covers the entire calendar prepares nobody for anything. In Jupiter retrograde, where three free months are left each year, the shadow still says something. Here it is only the geometry of the loop.

In the modern tradition, Pluto governs power, what ends for good, what was hidden and what is not up for negotiation. What retrogradation does with that has one direction, and it is recognisable:

• The dispute turns inward. The arm wrestle that was being fought with someone else, a boss, a family, a person, becomes one with yourself. The question stops being who gives the orders and becomes where you give in, and why.
• Control shows itself for what it is. The organising that looked like care shows itself as fear in some places, and the phase tends to show exactly which. It is uncomfortable and it is usable.
• What has already ended asks to be let go. Not what hurts: what has ended and is still being held out of habit, out of an old investment, or out of not knowing who you are without it.
• What was under the rug comes up. Family business, shared money, inheritance, an old secret. Pluto turned inward does not create the problem: it gives back what was already there.

And the limit deserves saying out loud, more here than on any other page of this series: astrology does not predict death, does not predict tragedy, does not diagnose anyone and does not decide for anyone. These are tendencies, and a tendency is something you work with.

There is no prohibition, and the arithmetic shows why: if you are 40, you have already lived through about seventeen years of Pluto retrograde. Everything you have built was built inside them, half the time.

What pays off: therapy, an honest inventory of debt and of partnership, the conversation put off for years, closing on paper what has already ended. The phase favours those who would rather look than manage.

What yields less: forcing it. The confrontation set up to be won tends to cost more than it returns in these months, because the material of the phase is internal and the chosen opponent is almost never the real one.

What is not worth postponing: a legal deadline, an estate with a date on it, a course of treatment, a booked exam. And the usual argument, which in Pluto is decisive: with 43% of the year retrograde and shadow all year long, waiting for clear sky is waiting for a day that does not come.

Being born in a Pluto retrograde period is not living a transit: it is a fixed trait. And it happens to 43.1% of people, almost half.

It is a generational trait before it is yours. Everyone born in those five and a half months carries the same mark, in the same sign, and the sign repeats for up to twenty years: if it explained personality on its own, there would be a whole generation of identical people. What individualises it is the HOUSE Pluto fell in, and that depends on the hour and the city of birth.

That said, the mark has content. People with Pluto retrograde tend to exercise power inwardly rather than outwardly: they almost never fight out loud, and the transformation they work on their own life is larger than the one they try to work on other people's. The series describing Pluto by house begins at Pluto in the 1st house.

And the questions that come up most on this subject, with the short answer: