Varga Charts: what a divisional chart is and how it is calculated

One sky, several resolutions

A planet's position is a single number: its longitude. The birth chart reads that number at the resolution of a sign, 30° wide. A divisional chart reads the same number at a finer resolution — ninths for the Navamsa, tenths for the Dashamsa — and maps the result back onto the twelve signs so it can be read like a chart.

That is the whole mechanism, and it is worth stating plainly because vargas are often described as separate charts of separate aspects of life, as though the sky were consulted again. It was not. The information was always in the degrees; the division is a way of attending to it.

Why each division has a subject

The classical assignment gives each division a subject — the ninth for marriage, the tenth for profession, the seventh for children, the twelfth for parents. The reasoning is traditional rather than derived, and the conventions are old and consistent enough across texts to be worth following.

What follows from it in practice is a discipline: use the division assigned to the question rather than scanning all sixteen until one agrees with the answer you want. A reading that cites many vargas for one question is usually doing the second thing.

The birth time is the real constraint

Because a varga is calculated from the degree within the sign, the finer the division the more a small error moves it. A Navamsa part is 3°20′ wide, which the ascendant crosses in roughly thirteen minutes. A D60 part is half a degree, which it crosses in about two.

So the usable depth of a varga reading is set by how well the birth time is known, and no amount of calculation improves it. That is why every chart we produce states its own birth-time accuracy, and why a report built on an approximate time leans on the Moon rather than on the finer divisions.

Common questions

What is a varga chart in simple terms?

The same birth chart, read at a higher magnification. Each sign is cut into equal parts and each part is given a sign, which produces a second chart used for one specific subject.

Is the Navamsa the most important varga?

After the birth chart, generally yes. It is read for marriage and for a planet's underlying strength, and Jaimini's Karakamsha is defined within it.

Do divisional charts need an exact birth time?

More and more as the division gets finer. The D9 needs the time to within a few minutes to be reliable; the D60 needs it to the minute, which is rarely available.

How many divisional charts does a full reading use?

In practice a handful — the D9, D10 and D12 most often, with others added for specific questions. Our Premium Kundli computes the full Shodashvarga and reads the ones the questions call for.