What a solar return is
Once a year the Sun comes back to the exact degree, minute and second it held when you were born. A solar return chart is cast for that instant, and it is read as the shape of the year that follows.
The moment is rarely your birthday to the hour. It drifts by about six hours each year and jumps back by a day every leap year, so the return can fall the day before or the day after the date on your passport.
Why the return ascendant changes so much
That six-hour drift is the whole reason solar return charts are worth casting. Six hours moves the ascendant roughly ninety degrees, so the rising sign of your return chart advances by about three signs every year and works through the whole zodiac in four.
Everything else in the chart moves too, but slowly. The Sun is by definition in the same degree every year; the outer planets shift a little. What genuinely restructures the chart from one year to the next is the angles, which is why the return ascendant and Midheaven carry most of the reading.
Where to cast it
This is the one real disagreement in solar return practice, and it changes the answer completely.
| Method | What it uses | Argument for it |
|---|---|---|
| Birthplace | Your natal coordinates | The chart belongs to you, not to where you happen to be |
| Current residence | Where you live now | The year is lived where you are |
| Relocated | Somewhere you deliberately travel to | Choosing the location chooses the year |
This calculator uses your birthplace by default, which is the more conservative convention. The relocation argument is the basis of a practice called solar return travel, where people fly somewhere specific for their birthday to obtain a particular return ascendant. Whether that works is not something a calculator can settle, and it is worth knowing the claim exists.
How to read the chart
Start with the ascendant and the Midheaven, since they are what changed. A return chart with the Midheaven in the tenth house of the natal chart is pointing the year at career whether or not you planned that.
Then look at where the Sun landed by house. The Sun is in the same zodiacal degree every year, but the house it occupies rotates with the ascendant, and that house is conventionally read as the department of life the year is organised around.
Finally, look for anything in the return chart sitting close to a natal placement. A return Saturn conjunct your natal Sun is a specific and readable configuration; a return chart with no contacts to the natal chart is a quiet year, and quiet years exist.
What it does not do
A solar return does not predict events. It describes a configuration and a set of emphases for twelve months, and two people with similar returns spend them very differently.
It also does not override the natal chart. The natal chart is the instrument; the return is one year's weather. Readings that treat a difficult return as a verdict on the year have inverted that relationship.
The lunar return, and why it is not offered here
The same technique applies to the Moon, which returns to its natal degree roughly every twenty-seven days. Lunar returns are used for month-ahead work by some practitioners.
They are not offered here because the Moon's speed makes them extremely sensitive to birth time accuracy: an error of a few minutes in the natal Moon moves the return by hours and the return ascendant by tens of degrees. That is a precision this site cannot honestly claim for most people's recorded birth times.
What you need to run it
A birth date, a birth time and a birthplace, plus the year you want. The time matters twice here: once for the natal Sun's exact degree, which determines the return moment, and once for the natal houses the return is read against.
Without a birth time the return moment is still computable to within a few minutes, since the Sun moves slowly, but the return ascendant is not, and that is the part worth having. The calculator says so rather than producing an angle it cannot stand behind.
Common questions
Is the solar return on my birthday?
Rarely to the hour. The moment drifts by about six hours a year and jumps back a day every leap year, so the return can fall the day before or after the calendar date.
Why does the return ascendant change so much each year?
Because of that six-hour drift, which moves the ascendant roughly ninety degrees. The rising sign of a return chart advances about three signs a year and works through the zodiac in four.
Should I cast it for my birthplace or where I live now?
This calculator uses your birthplace, which is the more conservative convention. Practitioners disagree, and some travel deliberately for a particular return ascendant.
What should I read first?
The ascendant and Midheaven, since they are what changed. Then which house the Sun landed in, then any return placement sitting close to a natal one.
Does a solar return predict the year?
No. It describes a configuration and a set of emphases for twelve months. It also does not override the natal chart, which remains the instrument.
Do you offer lunar returns?
No. The Moon's speed makes them extremely sensitive to birth time accuracy, and that is a precision most recorded birth times cannot support.