Private astrology calculator
Sun Sign Calculator
Find the zodiac position of the Sun at your birth without relying on date-range shortcuts.
Methodology
Transparent rules, local inputs
Sun Sign uses a tropical, geocentric longitude from Astronomy Engine. With no birth time, ChartOdyssey reports whether the sign stays stable across the complete local day and withholds a degree-level result. Birth details remain in this browser and are never sent to an external calculation service.