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Your Trimshamsha (D30) chart

The Trimshamsha is the varga read for health, difficulty and the kind of trouble a chart is prone to. It is also the one most often computed wrongly, because unlike every other divisional chart it does not divide a sign into equal parts. This computes it the classical way and draws it beside your birth chart.

How this is worked out

Why the D30 is not thirty equal parts

Every other varga cuts a sign into n equal slices. Trimshamsha does not. An odd sign is divided into five unequal stretches ruled by the five planets that are neither the Sun nor the Moon: Mars takes the first five degrees, Saturn the next five, Jupiter the next eight, Mercury the next seven, and Venus the last five. An even sign reverses the order and maps to those planets' other signs. This is why a tool that treats D30 as thirty equal parts gives a different chart from the texts, and why the luminaries never appear as D30 lords.

What the D30 is read for

Difficulty, in the broad classical sense: illness, accident, the kinds of trouble a person is susceptible to, and the moral pressure points of a chart. It is read alongside the first house for the body, the sixth for illness and the eighth for crisis. It is a chart about vulnerability, which makes it the varga most easily misused.

How this page treats it

Carefully, and without prediction. A Trimshamsha does not forecast an illness, a date or an outcome, and this page will not pretend otherwise. What it does is show you the placements accurately, including the unequal divisions most free tools get wrong, so that a reading done with an astrologer starts from correct data. If you have a health concern, it belongs with a doctor first.

Reading it beside the birth chart

As with every varga, the value is in the comparison. A lagna lord that holds its sign between D1 and D30 describes a constitution that behaves consistently. One that falls in D30 is classically read as a body that needs more deliberate maintenance than average, which is a statement about routine and prevention, not about fate.

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How to read a D30 chart without fooling yourself

Why the D30 is not thirty equal parts

Every other varga cuts a sign into n equal slices. Trimshamsha does not. An odd sign is divided into five unequal stretches ruled by the five planets that are neither the Sun nor the Moon: Mars takes the first five degrees, Saturn the next five, Jupiter the next eight, Mercury the next seven, and Venus the last five. An even sign reverses the order and maps to those planets' other signs. This is why a tool that treats D30 as thirty equal parts gives a different chart from the texts, and why the luminaries never appear as D30 lords.

What the D30 is read for

Difficulty, in the broad classical sense: illness, accident, the kinds of trouble a person is susceptible to, and the moral pressure points of a chart. It is read alongside the first house for the body, the sixth for illness and the eighth for crisis. It is a chart about vulnerability, which makes it the varga most easily misused.

How this page treats it

Carefully, and without prediction. A Trimshamsha does not forecast an illness, a date or an outcome, and this page will not pretend otherwise. What it does is show you the placements accurately, including the unequal divisions most free tools get wrong, so that a reading done with an astrologer starts from correct data. If you have a health concern, it belongs with a doctor first.

Reading it beside the birth chart

As with every varga, the value is in the comparison. A lagna lord that holds its sign between D1 and D30 describes a constitution that behaves consistently. One that falls in D30 is classically read as a body that needs more deliberate maintenance than average, which is a statement about routine and prevention, not about fate.

Frequently asked

What is the Trimshamsha or D30 chart?

The thirtieth divisional chart, read for health, difficulty and susceptibility to trouble. Unusually, it divides each sign into five unequal parts rather than thirty equal ones.

Why do different sites give me different D30 charts?

Almost always because of the unequal division. Trimshamsha assigns 5, 5, 8, 7 and 5 degrees to Mars, Saturn, Jupiter, Mercury and Venus in an odd sign, and reverses that order in an even sign. A tool that divides the sign into thirty equal parts produces a chart that does not match the classical rule.

Can the D30 predict an illness?

No, and it should not be used to try. It describes classical areas of vulnerability, which is information for prevention and for a conversation with an astrologer, not a diagnosis. Any health concern belongs with a doctor.

Why are the Sun and the Moon never D30 lords?

Because the classical scheme assigns the five stretches of each sign to Mars, Saturn, Jupiter, Mercury and Venus only. The luminaries are excluded by the rule itself, so a D30 sign is never Leo or Cancer.

ShukrAI computes from your real birth chart with the Swiss Ephemeris and Lahiri ayanamsa. It is for reflection and self-understanding, is never a prediction of doom, and is not a substitute for professional advice.

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