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What is the D7 chart?

Saptāṁśa divides each zodiac sign into seven portions and is traditionally studied for children, parenthood and family continuity. D7 derives from the same birth details as D1 and adds a focused view to the wider chart.

One sign. Seven equal parts.

10° AriesOdd · starts Aries
10° Aries maps to Gemini in D7

Aries, 10 degrees. Saptāṁśa: count from the source sign for odd signs and its seventh for even signs. The 30-degree sign is divided into 7 equal portions. The highlighted original longitude is mapped using the recorded sign sequence. In order, the 7 portions map to Aries, Taurus, Gemini, Cancer, Leo, Virgo, Libra. Portion 3 contains the example and maps to Gemini.

0°Aries · 30°
  1. Portion 2Taurus4°17′08.57″–8°34′17.14″
  2. Portion 3Gemini8°34′17.14″–12°51′25.71″
  3. Portion 4Cancer12°51′25.71″–17°08′34.29″

10° Aries → Gemini

Portion 3 · D7

10° TaurusEven · starts Scorpio
10° Taurus maps to Capricorn in D7

Taurus, 10 degrees. Saptāṁśa: count from the source sign for odd signs and its seventh for even signs. The 30-degree sign is divided into 7 equal portions. The highlighted original longitude is mapped using the recorded sign sequence. In order, the 7 portions map to Scorpio, Sagittarius, Capricorn, Aquarius, Pisces, Aries, Taurus. Portion 3 contains the example and maps to Capricorn.

0°Taurus · 30°
  1. Portion 2Sagittarius4°17′08.57″–8°34′17.14″
  2. Portion 3Capricorn8°34′17.14″–12°51′25.71″
  3. Portion 4Aquarius12°51′25.71″–17°08′34.29″

10° Taurus → Capricorn

Portion 3 · D7

30° ÷ 7 ≈ 4°17′08.57″ per part

Calculation examples

How is the D7 chart calculated?

Each 30° zodiac sign is divided into seven equal parts. Every part spans approximately 4°17′08.57″. A planet’s degree within its birth-chart sign determines which part it occupies.

  • OddStart from the same sign
  • EvenStart from the seventh sign

Count forward through the zodiac from that starting sign. A planet at 10° Aries lies in the third part and maps to Gemini in D7. At 10° Taurus, the count begins with Scorpio, so the third part maps to Capricorn.

The diagrams illustrate the standard Parāśari rule used by Mạghā. They explain the calculation, rather than representing a complete birth chart.

A mother helping her child study a manuscript while a grandmother looks on in a warm Indian courtyard

Children, parenthood and continuity

The traditional subject of Saptāṁśa is children and descendants.

This gives the chart a particular place in the study of family life. Astrologers consider it when exploring themes around children and the experience of becoming and being a parent.

Parenthood also brings questions of care, responsibility and what one generation passes to the next. These offer a human context for the chart’s traditional theme of family continuity.

An Indian astrologer comparing two chart manuscripts by lamplight in a carved courtyard

Reading D7 alongside D1

Begin with the birth chart, then bring Saptāṁśa into the reading.

In the traditional approach, the fifth house of D1, its ruling planet and Jupiter help establish the context for children. D7 adds detail through its own ascendant, the ascendant’s ruler and the condition of its planets.

Look for patterns across both charts instead of drawing a conclusion from one placement. Accurate birth time matters: the smaller divisions make D7’s ascendant more sensitive to changes in the input time.

These are traditional interpretations, not guaranteed outcomes. A divisional chart is one part of a reading and should be considered alongside the wider birth chart.

Explore your D7 chart

D7 Saptāṁśa chart in Mạghā Astro AI, using Nila Raman’s birth chart

Open your birth chart in Mạghā Astro AI and select D7 to explore your Saptāṁśa placements.

Explore your D7 chart