Hellenistic · timing
Solar Return Chart: Find Your Exact Moment, and How to Read the Year
A solar return chart is the chart cast for the moment the Sun comes back to the exact degree and minute it held at your birth. It happens once a year, usually on your birthday or the day before, and astrologers read it as the chart of the year ahead. The old texts called it the revolution of the years.
Find your exact solar return time →
Roman OleksandrHellenistic astrologer · free calculator · 10 min read
What is a solar return chart?
A solar return chart is a chart drawn for the exact moment the Sun returns to its position at your birth, to the minute of arc. That moment comes once a year, close to your birthday. The planets, the rising sign and the houses at that moment are read as a picture of the year it opens.
The Sun takes 365 days, 5 hours and 49 minutes to come back to the same point of the zodiac. The chart for that moment is your solar return.
The idea is old. Dorotheus of Sidon, writing in the first century, already dates the start of a person's year from the moment "the Sun enters the beginning of the minute in which he was on the day the native was born." Persian and Arabic astrologers built a whole craft on it, the revolution of the years of nativities, and the modern solar return grew out of that.
Two things set a solar return apart from your birth chart. The planets are where they are this year, not where they were when you were born. And the rising sign and houses depend on the place the chart is cast for, which is why people argue about where to spend their birthday. Both questions come up below.
When is my solar return?
Your solar return usually falls on your birthday or the day before. Now and then it is the day after, and for early-morning births from decades ago it can be two days before. To find the exact moment you need your birth date, time and place; the calculator below gives it for any year, wherever you will be.
The time is worked out from the Sun's apparent position in the tropical zodiac, the same position astrology software uses, and checked against a full ephemeris: it lands within about five minutes. Your birth time matters more than that. A time rounded to the nearest hour can move the return by up to half an hour, because the return keeps whatever error the birth time has.
Why isn't my solar return on my birthday?
Because the calendar and the Sun keep different years. The Sun needs 365 days, 5 hours and 49 minutes to come back to the same point, while the calendar counts 365 days, with a leap day every fourth year. So your solar return slides about six hours later each year, then jumps back almost a day after each leap day.
A real example: born July 15, 1970, at 6:30 in the morning in Los Angeles. Her solar return now falls on July 14 in most years, and in 2026 it comes at 7:12 in the evening, Pacific time.
Over a lifetime the leap days do not cancel perfectly either. Four of the Sun's years are about 45 minutes shorter than four calendar years, so a return that once fell on the morning of your birthday can, by your fifties, fall on the evening before. Nothing is wrong with your chart. The finder above shows the date and the time together, so you can see which day it lands on.
Time zones add one more shift. The return happens at a single instant for the whole planet. In San Diego it might be late on the 14th, in Madrid early on the 15th. If you will spend your birthday away from home, choose that place in the second time zone box.
How do you read a solar return chart?
Start with the ruler of the year, then the chart. In the old method the ruler of the year comes from the profection of your birth chart, and the solar return shows how that planet is doing. After that, look at the return's rising sign, the planets on the angles, the house the Sun falls in, and the Moon.
- Find the lord of the year. Count one sign from your rising sign for each year of your age: that sign rules the year, and its planet is the lord of the year. The calculator above does this if you give it your rising sign. The full method is in your profection year, explained.
- Judge the lord of the year. Is it a benefic or a malefic, how did it stand in your birth chart, and where is it now: on an angle, in its own sign, or hidden under the Sun's rays and retrograde? Dorotheus reads the year from this planet first.
- Read the return's rising sign and angles. The sign rising at the return colors the year, and planets right on the rising sign, the top of the chart, the setting point or the bottom are the loudest that year.
- Find the house of the Sun. The Sun is always at the same degree in a solar return; what changes is the house it lands in, and modern astrologers read that house as the year's focus.
- Look at the Moon. Her sign, phase and the planets she meets next describe how the year feels day to day.
- Lay the return over your birth chart. Abu Ma'shar reads the return partly on its own and partly in comparison with the birth chart, throughout. A return planet landing on a sensitive point of the birth chart is where events tend to gather.
For the Sun's house, which is the question most people start with, here is the usual modern reading:
| Sun in the | The year tends to center on |
|---|---|
| 1st house | You: a fresh start, your body, how you come across. |
| 2nd house | Money, earnings and what you value. |
| 3rd house | Siblings, neighbors, writing, short trips, learning. |
| 4th house | Home, family, parents, a move or a renovation. |
| 5th house | Pleasure, romance, creative work and children. |
| 6th house | Daily work, routines and the details of your schedule. |
| 7th house | Partners, marriage, contracts and open rivals. |
| 8th house | Shared money, debts, inheritance, what you owe and are owed. |
| 9th house | Travel, study, beliefs and teachers. |
| 10th house | Career, reputation and the work people see. |
| 11th house | Friends, groups, allies and hopes. |
| 12th house | A quieter year: rest, solitude and work behind the scenes. |
Read the table as a starting point, not a verdict. One placement in a return never decides a year on its own, and a return chart is read against the birth chart it belongs to.
What did the old astrologers say about the revolution of the year?
They treated the return as one layer over the birth chart, never as a new chart standing alone. Dorotheus starts the year at the Sun's return and reads it through the lord of the year. Valens says the recasting can strengthen or delay what a period promises. Abu Ma'shar casts a full chart with its own houses at every return.
Dorotheus gives the rule plainly. The lord of the year is found by counting from the rising sign, "a year for each sign, until it ends up at the year which you want: for the lord of the year is the lord of that house." The year itself begins "when the Sun enters the beginning of the minute in which he was on the day the native was born" (Carmen Astrologicum IV.1.2 and IV.1.4, tr. Dykes).
Valens, a century later, explains why the return matters to the timing techniques:
We consider the recasting of horoscopes to be essential because the recasting contributes greatly to the temporal interchange of the chronocrators. Sometimes the recasting increases the strength of the results, sometimes it is indicative of delays in the results.Vettius Valens, Anthology V, "The Recasting of a Horoscope," tr. Mark Riley, p. 97 (free PDF at Skyscript)
The chronocrators are the time lords, the planets that rule each period of a life. For Valens the return does not replace them; it shows whether this year will help or hold back what they promise. He even took the year's rising sign from a second moment, when the Moon came back to her own birth degree while the Sun was still in his birth sign. Few astrologers follow him in that today, but it shows how much weight he gave the year's chart.
Abu Ma'shar, writing in Baghdad in the ninth century, made the revolution a full chart: "at the revolution of every year, one ought to derive its Ascendant and calculate the twelve houses of the circle according to it, and understand the positions of the planets for that time" (On the Revolutions of the Years of Nativities I.2.4, tr. Dykes). He then read it against the birth chart and the lord of the year together, and that combination is still the backbone of a careful year reading. You can read more about the tradition these authors belong to in what is Hellenistic astrology.
Does it matter where you spend your birthday?
For the planets, no: their signs and degrees are the same anywhere on Earth at the moment of your return. Only the rising sign and the houses change with place. Some modern astrologers travel for a better solar return chart. For the old method, Benjamin Dykes casts the revolution for the birth place.
Dykes, who translated Abu Ma'shar's book on the revolutions, sums up the history: since the late Renaissance astrologers have used three places, the birth place, the place you happen to be at the return, and the city you live in. He uses the birth place, and finds no evidence that Abu Ma'shar or his contemporaries used anything else (introduction to Persian Nativities IV, p. 12).
So if you follow the old method, cast your return for where you were born. If you want to look at a relocated return as well, the planets will not change, only which houses they fall in. In my view a trip does not hand you a different year: where your life actually is, your work, your family and your home, still shapes what the year can bring.
What is the difference between a solar return and a profection year?
The profection year is a fixed count from your birth chart: each birthday the year moves on one sign from your rising sign, and the planet ruling that sign leads the year. The solar return is a new chart cast at each birthday. The profection names the year's leader, the return shows its condition.
That is how the two were used together. Dorotheus finds the lord of the year by profection and judges the year by that planet's condition. Abu Ma'shar reads the lord of the year and the revolution chart together, in much more detail. Used alone, a solar return chart has too many moving parts to rank: the profection tells you which planet to look at first.
The profection also gives the year a theme you can know in advance. If you turn 58 this year, for example, it is an 11th house year, the house of friends and hopes, and the planet ruling that sign leads the year; that age also brings the second Saturn return. The calculator above shows your house year and its lord when you add your rising sign, and the profection year article explains each of the twelve.
Common questions about solar return charts
How do I get my solar return chart? Find the exact moment with the calculator above, then enter that date, time and the place you choose in any chart program as if it were a birth. The chart it draws is your solar return.
Do I need my birth time? Yes, for the exact moment. With the date alone the Sun's birth position can be off by up to half a degree, which moves the return by up to half a day. The rising sign of the return also depends on that time.
Is the solar return always on my birthday? No. About half the time it falls on your birthday and about half the time on the day before; now and then the day after, and for some early-morning births from decades ago two days before. The time of day moves by about six hours a year. See why.
How long does a solar return chart last? One year, from one return to the next. Some astrologers feel its themes starting a few weeks before the birthday.
Should I travel for my birthday? You can, but the old texts give no reason to. The planets are the same everywhere; only the houses move. The birth place is the traditional choice.
What is a lunar return? The same idea for the Moon: the moment she comes back to her birth position, about every 27 and a third days. It is read as the chart of the month ahead.
Is a solar return the same as my birthday horoscope? No. A birthday horoscope in a magazine is written for everyone with your Sun sign. A solar return is calculated for your own birth moment, so no two people share one unless they were born at the same time and place.
- Dorotheus of Sidon, Carmen Astrologicum IV.1, "On the revolution of years," tr. Benjamin N. Dykes (Cazimi Press, 2019).
- Vettius Valens, Anthology V, "The Recasting of a Horoscope with Reference to the Topic of Propitious and Impropitious Times," tr. Mark T. Riley, p. 97, free PDF at Skyscript.
- Abu Ma'shar, On the Revolutions of the Years of Nativities I.2, and Benjamin N. Dykes's introduction, in Persian Nativities IV (Cazimi Press, 2019).
- Length of the tropical year (365.2422 days): Wikipedia, "Tropical year".
- Solar return times on this page: the Sun's apparent tropical longitude from the low-precision solar theory in Jean Meeus, Astronomical Algorithms, 2nd ed. (1998), with correction terms fitted to and checked against the Astronomy Engine ephemeris; time zones from your browser's time zone database.
Roman OleksandrHellenistic astrologer. He reads charts from Valens, Dorotheus, Paulus and Ptolemy in translation, and every statement in a reading traces back to a named technique. How he reads a chart