Rising Sign Calculator
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For entertainment and self-reflection only. Not scientific, medical, financial, or relationship advice.
Ascendant from birth time and place — the sign on the eastern horizon at birth.
Birth data
Birth date, local time, and place — tropical zodiac, whole-sign houses simplified.
Rising Sign Calculator
Leo
- Rising (ascendant)
- Leo
- Sun sign
- Gemini (Air, Mutable)
- Rising sign
- Leo
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The rising sign (ascendant)
The rising sign, or ascendant, is the zodiac sign that was ascending on the eastern horizon at your exact birth moment. It rotates through all twelve signs roughly every 24 hours — so birth time is essential.
Astrology texts often link the rising sign to first impressions, physical presence, and the “mask” you wear in new situations. It also sets the house system anchor in whole-chart readings. This calculator uses tropical zodiac and standard ascendant math from ephemeris data.
Example: two people born on the same day in the same city but four hours apart may share a sun sign yet have different rising signs. A birth time error of 30 minutes can sometimes change the ascendant on fast-rising latitudes.
Common questions
Is rising sign the same as sun sign?
No. Sun sign uses birth date only. Rising sign needs birth time and location because the horizon moves continuously.
Why does latitude matter?
The tilt of the horizon relative to the ecliptic varies by latitude, which affects how quickly signs rise. Always use the correct city coordinates or nearest major location.