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What is the D24 chart?

Chaturviṁśāṁśa, or Siddhāṁśa, divides each sign into 24 portions and is traditionally studied for learning. D24 uses the same birth details as D1. It does not assess intelligence or predict examination marks.

Twenty-four portions of 1°15′.

11° AriesOdd-numbered sign
11° Aries maps to Aries in D24

Aries, 11 degrees. Mạghā’s backward-even D24 variant. Count forward through the zodiac from Leo. Eleven degrees occupies portion nine, from 10 degrees to below 11 degrees 15 minutes. Direction arrows describe zodiac counting; degree portions still run from zero to thirty. The inset enlarges portions eight to ten. In order, the 24 portions map to Leo, Virgo, Libra, Scorpio, Sagittarius, Capricorn, Aquarius, Pisces, Aries, Taurus, Gemini, Cancer, Leo, Virgo, Libra, Scorpio, Sagittarius, Capricorn, Aquarius, Pisces, Aries, Taurus, Gemini, Cancer. Portion 9 contains the example and maps to Aries.

0°Aries · 30°

Leo · count forward

  1. Portion 8Pisces8°45′–10°
  2. Portion 9Aries10°–11°15′
  3. Portion 10Taurus11°15′–12°30′

11° Aries → Aries

Portion 9 · D24

11° TaurusEven-numbered sign
11° Taurus maps to Scorpio in D24

Taurus, 11 degrees. Mạghā’s backward-even D24 variant. Count backward through the zodiac from Cancer. Eleven degrees occupies portion nine, from 10 degrees to below 11 degrees 15 minutes. Direction arrows describe zodiac counting; degree portions still run from zero to thirty. The inset enlarges portions eight to ten. In order, the 24 portions map to Cancer, Gemini, Taurus, Aries, Pisces, Aquarius, Capricorn, Sagittarius, Scorpio, Libra, Virgo, Leo, Cancer, Gemini, Taurus, Aries, Pisces, Aquarius, Capricorn, Sagittarius, Scorpio, Libra, Virgo, Leo. Portion 9 contains the example and maps to Scorpio.

0°Taurus · 30°

Cancer · count backward

  1. Portion 8Sagittarius8°45′–10°
  2. Portion 9Scorpio10°–11°15′
  3. Portion 10Libra11°15′–12°30′

11° Taurus → Scorpio

Portion 9 · D24

Odd signs: Leo forward. Even signs: Cancer backward.

Ninth portion · 10°–11°15′

Mạghā’s calculated example

How is the D24 chart calculated?

Each portion spans 1°15′. In Mạghā’s shared calculation, odd-numbered signs count forward from Leo; even-numbered signs count backward from Cancer.

At 11°, a position occupies the ninth portion. Counting forward from Leo makes 11° Aries Aries in D24. Counting backward from Cancer makes 11° Taurus Scorpio.

D24 has differing counting conventions. Some published methods count forward from Cancer for even signs; the examples and app preview here use the backward-even method, so compare methods before comparing results.

Two students practising geometric forms with a teacher nearby

Learning, attention and practice

The classical subject of D24 is learning. It can be brought into questions about study, teachers and the sustained effort involved in acquiring knowledge.

Learning includes repeated practice and the opportunity to receive instruction. The chart’s symbolism does not replace these experiences, determine a student’s ability or assign a fixed educational path.

A scholar comparing two manuscripts in a carved stone alcove

Reading D24 alongside D1

Begin with the learning-related question in D1, then consider the D24 ascendant, its ruler and planetary relationships. Use the same sign-counting convention throughout the comparison.

Keep birth-time accuracy in mind and avoid deciding the meaning of the entire chart from one sign placement. A fine division can make a small input difference look substantial.

These are traditional interpretations, not a substitute for understanding a learner’s interests, support or circumstances.

Explore your D24 chart

D24 Chaturviṁśāṁśa chart in Mạghā Astro AI, using Nila Raman’s birth chart

Open your birth chart in Mạghā Astro AI and select D24 to explore your Chaturviṁśāṁśa placements.

Explore your D24 chart