Calculate your solar return
A solar return is the chart for the moment the Sun returns to the exact degree it held when you were born. It reads as the climate of your year, from one birthday to the next.
How we calculate it
We find the instant when the Sun's apparent longitude matches your birth chart, to less than one arc second. That is why the moment can fall the day before or after your birthday.
Location matters: the Sun returns to the same degree everywhere at once, but the rising sign and houses depend on where you are. That is why we ask where you'll spend your birthday.
We need your birth time: the Sun moves about one degree a day, and a few hours off shifts the whole return chart.