Rising Sign (Ascendant) Calculator
Calculate your ascendant (rising sign) using birth date, time, and location.
What is Rising Sign (Ascendant) Calculator?
Your Rising sign (Ascendant) is the zodiac sign that was on the eastern horizon at the exact moment you were born. It represents how others perceive you and your outward personality.
Unlike your Sun sign (your core identity), your Rising sign is your social mask and the first impression you make. Combined with your Sun and Moon signs, it completes the foundation of your astrological identity.
This calculator uses precise astronomical algorithms including Greenwich Mean Sidereal Time (GMST) and the obliquity of the ecliptic to compute your ascendant sign from your birth location and time.
How to use
Frequently asked questions
Your Rising sign depends on exactly where the zodiac was positioned on the eastern horizon at your birth moment, which changes every 2 hours. Your location affects the calculation through longitude and latitude.
Without your birth time, an accurate Rising sign calculation is impossible. Try asking family members, contacting the hospital where you were born, or requesting a copy of your birth certificate.
This calculator is accurate within ±1 degree using standard astronomical formulas. For ultimate precision, use software like Astro.com with official ephemerides data.
Your Sun sign is your core identity (the main zodiac sign you know). Your Rising sign is how others perceive you at first glance. Your Moon sign is your inner emotional world.