Most aspects depend on the year you were born. Sun square Pluto depends on the day. Twice a year, for about sixteen days each time, every baby born has it. The rest of the year, no one does. And those two windows slide forward by about two days each year.
We worked out those windows for every year from 1950 to 2030, and we show how. Then we cover what the square means in a birth chart, when the sky forms it again, and what it does between two charts.
First, the words. An aspect is an angle between two planets, as seen from Earth. A square is an angle of 90 degrees, a quarter of the circle. The orb is the gap we allow on either side of the exact angle. With an orb of 8 degrees, a square counts anything from 82 to 98 degrees apart.
What Sun square Pluto means in a birth chart
Start with the two bodies. The Sun is the core of a chart. It is read for your sense of self, your will, and the way you want to shine. Our guide to the Sun in your chart sets out that role in full.
Pluto is read for depth, power, and slow change under the surface. It was found in 1930, so every reading of it is less than a hundred years old. Our guide to the planet Pluto covers its dates and its limits.
Now the angle. Picture your chart as a house with twelve rooms. Each room is an area of life, and the planets are the furniture. A square puts two pieces of furniture at right angles. They face in different ways, so they get in each other’s path.
In the second century, Ptolemy sorted the angles in his book, the Tetrabiblos. In Book I, chapter 13, he calls the trine and the sextile harmonious. He calls the square and the opposition discordant, which means out of tune. That split between easy and hard angles still runs through Western astrology. Our page on the square aspect shows how it works with any pair of planets.
Ptolemy never saw Pluto, so the reading of this pair is modern. Reinhold Ebertin, in The Combination of Stellar Influences (1940), linked contacts between the Sun and Pluto to a drive for power and mastery. Sue Tompkins, in Aspects in Astrology (2002), treats a square as friction that asks for action. She does not treat it as a verdict.
Put together, the tradition reads Sun square Pluto as a will that meets a deeper force. The wish to be seen runs into a wish for control, your own or someone else’s. Here is how that reading is usually laid out:
- A strong will that dislikes being steered by others.
- A habit of hiding plans until they feel safe to show.
- Clashes with people in charge, read as tests of nerve.
- Periods where an old self is dropped and a new one is built.
That is a reading, not a fact about any person. Astrology is not a science. No chart feature makes anyone controlling, and none excuses harm.
Sun square Pluto natal: how common is it?
Most guides call this square intense, and some call it rare. We counted instead.
We drew 200,000 moments at random between 1950 and 2010, with a standard random number tool. Each moment had the same chance, so this counts time, not real births. For each moment we took the places of the Sun and Pluto from the Swiss Ephemeris. That is the standard table of planet positions used by chart software. We used the tropical zodiac, the one tied to the seasons. Then we measured the gap between the two bodies along the path of the Sun.
We counted both kinds of square. In one, the Sun is 90 degrees ahead of Pluto. In the other, it is 90 degrees behind. Here is what came out.
| Orb used | Share of moments | Roughly. |
|---|---|---|
| Within 8 degrees | 8.95 percent | One birth in eleven. |
| Within 3 degrees | 3.37 percent | One birth in thirty. |
Which orb is right? The tradition has no single answer. In Christian Astrology (1647), William Lilly gave each planet its own orb. So the gap you allow depends on the planets involved. We show a wide orb and a tight one so you can see the range.
We checked the result by stepping through the same sixty years every six hours, with no gaps. That gave 8.87 percent within 8 degrees and 3.33 percent within 3 degrees. Then we ran a much longer window, from 1600 to 2400, one step a day. That gave 8.89 percent. Simple geometry agrees. Two squares, each 16 degrees wide, cover 32 of the 360 degrees of the circle. That is 8.9 percent.
The share by decade barely moves. In our draw, it ran from 8.72 percent in the 1950s to 9.16 percent in the 1960s. Other Pluto squares swing much more from one decade to the next. This one does not, and the reason is the heart of this guide.
Why your birthday decides it
The Sun moves about one degree a day. Pluto moves one to three degrees a year. Next to the Sun, it is almost a fixed point.
So the Sun does all the work. Once a year it reaches the point 90 degrees ahead of Pluto. Six months later it reaches the point 90 degrees behind. Each time, it stays within 8 degrees of the square for about sixteen days. Two windows make about 32 days a year, which is why the share stays near 8.9 percent in every decade.
What changes is the calendar. Pluto creeps forward each year, so the square points move with it. The windows land about two days later every year. Over a lifetime, they drift by months.
Here are the windows for a sample of birth years. The dates are in UTC, the world clock time used by astronomers. A birth in that range, in that year, has the Sun within 8 degrees of a square to Pluto.
| Birth year | First window | Second window. |
|---|---|---|
| Born in 1950 | April 28 to May 15 | November 4 to November 20. |
| Born in 1960 | May 16 to June 2 | November 22 to December 8. |
| Born in 1970 | June 7 to June 24 | December 14 to December 29. |
| Born in 1975 | June 20 to July 7 | December 26 to January 10, 1976. |
| Born in 1980 | January 4 to January 20 | July 2 to July 19. |
| Born in 1990 | January 29 to February 14 | July 30 to August 16. |
| Born in 2000 | February 24 to March 11 | August 25 to September 10. |
| Born in 2010 | March 18 to April 3 | September 17 to October 4. |
| Born in 2020 | April 6 to April 22 | October 7 to October 23. |
| Born in 2025 | April 15 to May 1 | October 16 to November 1. |
Born in a year between two rows? Your windows sit between the two, about two days later for each year. A birth on the first or last day of a window needs the exact time, since a few hours can tip it in or out.
The pace of that drift is not even. From 1950 to 1960, the windows moved 18 days. From 1980 to 1990, they moved 25 days. From 2010 to 2020, they moved 19 days. Pluto’s path round the Sun is stretched. In the late 1980s it came close to the Sun and moved faster. Now it is moving away and slowing down.
Summer windows last close to seventeen days, winter ones close to sixteen. Earth is farthest from the Sun in early July, so the Sun seems to move a little slower then.
Reading the square in your own chart
Once you find the square, look at two things, then at the orb: a square within a degree or two is read as louder than one at seven or eight.
First, the signs. In a square, the two bodies usually sit in signs of the same mode. The mode is the pace of a sign. Cardinal signs start things, fixed signs hold on, and mutable signs adapt. A square across fixed signs is read as the most stubborn. A square across cardinal signs is read as the most restless.
The table shows this mode moving with the years. Pluto was in Leo for most of the 1950s, so the windows fell with the Sun in Taurus or Scorpio. Those are fixed signs. In the late 1970s, Pluto was in Libra, so the Sun sat in Cancer or Capricorn, both cardinal. Your birth year picks the mode. Your birthday picks the side.
Second, the houses. Each room of the chart covers one area of life. The Sun’s room shows where you want to be seen. Pluto’s room shows where the pressure comes from. Houses need a birth time, so a chart built from the date alone cannot show them.
The quiet partner: Pluto stands still near each square
Our counts turned up one more pattern. Every Sun square Pluto falls close to a turning point of Pluto. From 1940 to 2040, each exact square lands 8 to 13 days from a Pluto station. A station is the moment a planet seems to stop before it changes direction.
Here is why. Seen from Earth, outer planets sometimes appear to move backwards. That is what retrograde means. It happens as Earth passes them on its faster orbit. For Pluto, the backward run starts and ends when the Sun stands about 100 degrees away.
So the order is always the same. When the Sun is 90 degrees ahead of Pluto, the square comes first, and Pluto turns retrograde about ten days later. When the Sun is 90 degrees behind, Pluto turns direct first, and the square follows about ten days later. These days, the first case falls in late April and the second in late October. In 2026, the spring square fell on April 25 and Pluto turned retrograde on May 6. Pluto turned direct on October 16, and the next square follows on October 26.
A planet near a station barely moves for weeks. Some astrologers give extra weight to a birth Sun square a near-still Pluto. Others do not, and the tradition has no fixed rule on it.
Transit Sun square Pluto: when the sky forms it again
A transit is a planet’s current place in the sky, read against a birth chart or another planet. The sky forms Sun square Pluto twice a year. Here are the exact dates, in UTC, with New York time added.
| Exact square | Sun and Pluto | New York time. |
|---|---|---|
| April 25, 2026, 16:32 UTC | Sun in Taurus, Pluto in Aquarius, both at 5 degrees | Past, at 12:32 pm. |
| October 26, 2026, 12:11 UTC | Sun in Scorpio, Pluto in Aquarius, both at 3 degrees | 8:11 am that day. |
| April 27, 2027, 15:24 UTC | Sun in Taurus, Pluto in Aquarius, both at 7 degrees | 11:24 am that day. |
| October 28, 2027, 10:26 UTC | Sun in Scorpio, Pluto in Aquarius, both at 4 degrees | 6:26 am that day. |
| April 28, 2028, 13:49 UTC | Sun in Taurus, Pluto in Aquarius, both at 8 degrees | 9:49 am that day. |
| October 29, 2028, 08:00 UTC | Sun in Scorpio, Pluto in Aquarius, both at 6 degrees | 4:00 am that day. |
The next one after this page went live falls on October 26, 2026. Notice the rhythm: two days later each year, and a degree or two deeper into each sign.
Each sky square lasts only a few days. The tradition reads it as a short test of will, when plans meet push-back. We do not promise any event from a transit.
There is a second, much slower kind of transit. It is when Pluto in the sky squares the Sun in your birth chart. Pluto moves so slowly that this contact lasts a year or more. From 2026 to 2030, Pluto runs from about 3 to 12 degrees of Aquarius. Our guide to Pluto in Aquarius gives the dates of that stay.
So who gets that slow square in those years? People with the Sun between about 3 and 12 degrees of Taurus or Scorpio. That means birthdays from about April 23 to May 2, or from about October 26 to November 4, in any year. The exact edges move by a day from year to year, so check the degree in your chart.
Sun square Pluto synastry: one chart against another
Synastry is the practice of laying two birth charts side by side. Here, the question is whether one person’s Sun sits about 90 degrees from the other person’s Pluto. Our guide to synastry charts explains the full method.
How common is it? We drew 60,000 pairs of moments, each pair less than five years apart. One person’s Sun was square the other’s Pluto, within 8 degrees, in 8.9 percent of pairs. Counting both directions, the contact linked 17.0 percent of pairs. So about one couple in six has it one way or the other.
Pluto barely moves in five years, so people close in age share almost the same Pluto. That makes this contact a matter of birthdays again. If one person’s birthday falls in a window for the other person’s birth year, the contact is there.
The tradition reads the Sun person as the one who wants to be seen, and the Pluto person as the one who pushes for depth, or for control. Neither reading is a forecast.
One square never decides a relationship. The full picture comes from all the angles between the two charts, and the houses each planet falls in. For the complete list of angles and how to weigh them, read our guide to astrological aspects.
How we made these numbers
All positions come from the Swiss Ephemeris, in the tropical zodiac. The gap is measured along the ecliptic, the Sun’s yearly path across the sky. The share of births uses the random draw from January 1, 1950 to January 1, 2010, checked by a pass every six hours. The birthday windows, exact squares and Pluto stations come from a search that halves the time step until it lands on each moment.
These figures count time, not people. More babies are born in some months than in others, and we did not adjust for that. They describe the sky, and nothing about the person who has this square.
Frequently asked questions
What does Sun square Pluto mean in astrology?
It means the Sun and Pluto sit about 90 degrees apart. The tradition reads it as a strong will meeting a deeper force, with themes of power, control and renewal. It is a reading, not a fact about any person.
How common is Sun square Pluto in a birth chart?
About 8.9 percent of the time within an 8 degree orb, and 3.4 percent within 3 degrees. The share barely moves by decade. It depends on your birthday, since the Sun crosses each square point once a year.
When is the next Sun square Pluto transit?
The next exact square falls on October 26, 2026 at 12:11 UTC, with the Sun at 3 degrees of Scorpio. Then comes April 27, 2027 at 15:24 UTC, with the Sun at 7 degrees of Taurus.
What does Sun square Pluto mean in synastry?
It means one person’s Sun sits about 90 degrees from the other person’s Pluto. The tradition reads it as the wish to be seen meeting a push for depth or control. In our count, it links about one pair in six born within five years of each other, counting both directions.
What is a strong Pluto placement?
Most astrologers point to close angles between Pluto and a fast personal body, such as the Sun, the Moon or Mars. A tight Sun square Pluto is one of them. The house Pluto falls in counts too, and that needs a birth time.
Go deeper with your personal Astrovision report
Reading about astrological concepts is a great start, but nothing compares to hearing how they apply directly to you. Our users love our audio-first approach, calling it “friendly, personal, and easy to understand.” While this article gives you the “what,” a personal report gives you the “so what.” Discover your unique path with an Astrovision report—your personal ‘user manual’ delivered in our celebrated podcast format.