Ascendants Calculator

The local calendar date at the place of birth.
Local clock time. The ascendant changes about one degree every four minutes, so accuracy matters.
Include daylight saving if it was in force. For example New York in July is -4, in January -5.
Positive north, negative south.
Positive east, negative west.
Rising sign
Virgo
Rising Sign (Ascendant) Calculator
Exact ascendant
25 Virgo 25'19"
Degrees into the sign
25.4221
Ascendant longitude
175.422076 degrees
Element
Earth
Modality
Mutable
Chart ruler
Mercury
Midheaven (MC)
24 Gemini 02'35"
Descendant
25 Pisces 25'19"
Imum Coeli (IC)
24 Sagittarius 02'35"
Local sidereal time
84.043 deg MC
Worked out from Jean Meeus, Astronomical Algorithms and 1 other source.
The ascendant advances about one degree every four minutes, so a birth time accurate to the minute is needed for a reliable rising sign.
For entertainment and cultural interest. Astrology and numerology are traditional practices with no scientific basis for predicting events or describing a person; do not use them for health, financial or legal decisions.

How this is worked out

4 steps
  1. Birth moment in UT gives Julian Day 2448058 (JDE 2448058.00066 after Delta T).
  2. Local apparent sidereal time drives the right ascension of the midheaven.
  3. Ascendant = atan2(cos RAMC, -(sin RAMC cos e + tan lat sin e)) = 175.4221 degrees.
  4. That is 25 Virgo 25'19"; the midheaven is 24 Gemini 02'35".

Results are general information, not financial, tax, legal, medical or engineering advice.