Solar Return Chart Calculator
Your solar return is the moment the Sun comes back to the exact degree, minute and second it held when you were born. It happens every year, close to your birthday but rarely on it, and the chart cast for that moment is read as the year ahead.
Three things decide it: your birth data, the year you want, and where you are standing when it happens. The third one surprises people.
Find Yours
You need your birth date, exact birth time and birthplace, then the year you want and the location you will be in. Start from your free birth chart to get your natal Sun to the degree and minute, because that degree is what the return is measured against.
Then read the return chart the way you would read any chart, with one difference: the Ascendant carries far more weight than usual, and whatever sits on the angles is generally what the year is about.
Why it is almost never on your birthday
A year is 365.2425 days, so the Sun arrives back at your degree about six hours later each year, then jumps back when a leap day intervenes. Your solar return lands anywhere in a window of roughly two days around your birthday, and the time of day moves every year.
That drifting time is why the Ascendant of the return chart can change so completely year on year, and why two consecutive returns sometimes read like different lives.
The Location Question
This is where calculators disagree with each other. The Sun returns to your degree at one exact moment worldwide, so the planets are identical wherever you are. The houses are not, because the houses come from the horizon where you were standing.
Cast it for your birthplace and you get one set of houses. Cast it for the city you live in now and you get another, sometimes with a different rising sign entirely, which moves every planet into a different room.
Most traditional practice uses your current location, on the reasoning that the year happens where you are living it. Some astrologers relocate on purpose, travelling for a birthday to shift the angles. Whether that works is an old argument and nobody has settled it.
What I would say is this: pick one method and use it consistently for a few years, then look back. A technique you have tested against four of your own years is worth more than a technique somebody told you about.
What to Read First
A solar return chart has everything a natal chart has, which makes it easy to drown in. Four things carry most of the weight:
- The Ascendant, which generally sets the tone of the whole year and can change dramatically from one to the next
- Which house your Sun lands in, the area of life that gets your attention for twelve months
- Anything on an angle, meaning near the Ascendant, Midheaven, Descendant or the bottom of the chart. Angular planets typically dominate
- The Moon, which often describes the emotional texture of the twelve months more reliably than anything else in the chart
A solar return Sun in the 10th usually reads as a visible, working year. The same Sun in the 12th often describes a year spent out of sight, and people who get that one often describe it afterwards as the year they were rebuilding something nobody could see.
Read It With Your Profection Year
The solar return is one of two annual techniques, and it works far better with the other one next to it. Annual profections tell you which house your year belongs to, from nothing more than your age and your rising sign, and which planet is running it.
Work out your profection year first, find the planet that rules it, and then go looking for that planet in your solar return chart. Where it sits, and whether it is comfortable there, tells you more about the year than either technique alone.
A profected 7th house year with a solar return Venus on the Ascendant is saying the same thing twice. That agreement is the signal worth trusting.
For the collective dates that fall across your year, every ingress, station, eclipse and lunation, the transit calendar puts them in the calendar you already use with a note on each one.
What It Will Not Do
A solar return describes conditions. It does not hand you events with dates attached, and any reading that promises that is selling something.
It also expires. The chart covers a single year, birthday to birthday, and then it is finished, which makes it genuinely testable. Cast last year’s, read it, then check it against the year you had. That test takes ten minutes and teaches you more than a stack of articles.
Watching your year against the chart as it unfolds is the whole method behind observational astrology, and the solar return is one of the better places to practice it, because the boundaries are clean.
Solar Return FAQ
How do I calculate my solar return chart?
Find the moment the transiting Sun returns to your exact natal degree and minute in the year you want, then cast a chart for that moment and for the place you will be. You need an accurate birth time, since the return degree has to be precise.
Is my solar return on my birthday?
Close to it, seldom exactly. A calendar year and a solar year differ by about six hours, so the return slides later each year and snaps back at leap years. Expect it within a day or so either side.
Which location do I use?
Most practice uses where you are living at the time, because the houses describe the year you are about to have. Casting for your birthplace is the older convention and still has defenders.
Can I change my year by travelling?
Relocating for the return moment does change the angles and therefore the houses. Whether it changes the year is disputed, and it has been disputed for a very long time. Test it on yourself before you book anything.
How long does a solar return chart last?
One birthday to the next. Some astrologers read the previous year’s chart as still fading for a few weeks after the new one begins.
What is the difference between a solar return and a profection year?
A profection needs only your age and rising sign and points at one house and one ruling planet. A solar return is a full chart for a precise moment. They are two independent readings of the same year, which is why agreement between them matters.
Start With Last Year
Before you read the year coming, cast the one you just finished. You already know how that year went, so you can see immediately whether the chart was describing it or you are reading into it.
Almost nobody does this, and it is the fastest way to find out whether the technique is worth your time. More background on the technique itself sits in solar return astrology.