Sun Sign Calculator
Check your tropical Sun sign from the Sun's calculated position. Birth time matters on transition dates, when a fixed calendar table may give the wrong answer.
Astronomical positions are calculated; astrology and numerology interpretations are symbolic, not scientifically validated assessments.
Enter your details and choose Calculate. Examples are illustrative, not saved profiles.
How this calculation works
The Sun's geocentric ecliptic longitude is divided into twelve 30-degree tropical signs, with Aries beginning at zero degrees.
Assumptions and limits
A date without a known time is evaluated at local noon and labelled as an illustration. It is not enough to resolve every cusp-day birth.
Questions about sun sign
Is this the same as a constellation?
No. Tropical signs are equal divisions measured from the equinox; astronomical constellations are unequal regions of the sky.
Why does the sign change at a different time each year?
A calendar date does not fix the precise equinox or longitude crossing. The ephemeris calculates the selected instant.