The tenth-division chart, computed from real ephemeris positions — with the D10 ascendant and its houses whenever your birth-time precision can support them.
The Dasamsa divides each sign into ten parts of 3° and re-maps the chart into a tenth-division zodiac. Classically it is the chart of karma in the world: profession, standing, and the work a life produces.
Every position here comes from the Swiss Ephemeris on the Lahiri sidereal ayanamsha, computed in integer arc-seconds from raw longitudes. Nothing on this page is estimated from your date of birth alone.
A public, widely-published moment, used here only to show the arithmetic on a chart anyone can check against any other software. Using a real person's birth details as a demo would be someone else's private data on a marketing page, so we don't. Nothing on this page is a statement about that moment or its consequences.
Indian independence — 15 August 1947, 00:00 IST, Delhi
This published moment is read as an exact time, which this site checks across ±5 minutes. Checked against your chart: because your birth time is treated as precise to ±5 min, the Dasamsa (D10) ascendant could be 2 different signs. This is about how sensitive the calculation is to your birth time — nothing else.
| Planet | Rashi | D10 | Flags |
|---|---|---|---|
| sun | cancer | sagittarius 9°53′ | — |
| moon | cancer | aries 9°50′ | — |
| mercury | cancer | cancer 16°44′ | Vargottama |
| venus | cancer | libra 15°36′ | — |
| mars | gemini | leo 14°33′ | — |
| jupiter | libra | gemini 18°46′ | — |
| saturn | cancer | virgo 24°43′ | — |
| rahu | taurus | aquarius 27°27′ | — |
| ketu | scorpio | leo 27°27′ | — |
Each sign is divided into ten equal parts of 3°. The part index, 0 through 9, is counted forward from the sign itself for odd (vishama) signs — Aries, Gemini, Leo, Libra, Sagittarius, Aquarius — and from the ninth sign counted inclusively from it for even signs.
That inclusive count is an easy place for an implementation to go wrong, so it is worth stating precisely: for an even sign, the start is the sign index plus eight, not plus nine. Counting 'the 9th from Taurus' inclusively gives Capricorn, and Taurus + 8 is Capricorn. Off-by-one here shifts every even-sign planet by a full sign.
The ascendant runs through the same rule to produce the D10 lagna, which is what makes D10 houses readable at all. A tenth-division chart with no lagna has no tenth house.
BPHS assigns the Dasamsa to: Status and great undertakings (mahat phala).
Practitioner tradition reads it in more detail — the D10 tenth house and its lord, the placement of the D1 tenth lord within the D10, the dignity of the Sun and Saturn there as significators of authority and of labour. That layer is practice rather than the text, and we label it as such.
What this page will not do is tell you which job to take. A divisional chart is a description; the decision is yours, and any reading of it is a conversation, not a lookup table.
The D10 ascendant changes sign roughly every 12 minutes on average — the figure varies with latitude by tens of percent, so treat it as a rough scale rather than a stopwatch.
After computing your chart we recompute the real ascendant at the edges of a birth-time window and count the D10 signs the ascendant could actually fall in. If that count is one, the placement is stable across the window and we say so. If it is more than one, we tell you the number rather than picking one.
The conventional working order is: the D10 ascendant and its lord, the D10 tenth house and its occupants, the placement in D10 of the planet that rules the tenth house of the rashi chart, and the condition of the Sun and Saturn — the significators of authority and of sustained labour respectively.
Practitioners weigh a planet's dignity in the D10 as well as its house. This calculator prints no dignity verdict on its own: a 'debilitated' with no account of what offsets it in the rest of the chart is a verdict we will not issue. The chart page of a free account reads the D10 together with your birth chart and says what it can and cannot judge.
Vargottama placements — a planet holding the same sign in the rashi chart and the D10 — are flagged automatically. None of this is a verdict about your working life; it is the material a reading is built from.
The grid is sign-fixed South Indian: the twelve signs occupy fixed cells and the planets move between them. When the D10 lagna can be supported it is highlighted and whole-sign house numbers are counted from it; when it cannot, house numbers are withheld entirely rather than anchored to an invented first house. An empty house-number column is information, not an omission.
The table beneath lists each planet your window fixes with its D1 sign, its D10 sign and the degree within it, with vargottama flags where a planet holds the same sign in both charts. A planet the window leaves in two D10 signs is named with both, not drawn. Retrograde motion is marked from the rashi chart, because retrogression is a physical property of the planet and is identical in every division.
Everything on the page comes from one computation. There is no second, simplified engine behind the free calculator — the arithmetic that produces this chart is the arithmetic that produces a signed-in user's chart, from the same registry of rules.
The tenth divisional chart: each sign split into ten parts of 3°, with every planet and the ascendant re-mapped accordingly. Classically it is read for profession, status and karma in the world.
It can describe; it does not decide. We compute the chart and cite what the classical texts assign to it. Anyone converting that into a guaranteed career outcome has left the texts behind.
The D10 ascendant shifts roughly every 12 minutes on average. Planets are far less sensitive. The page computes the actual number of candidate D10 signs for your ascendant across the birth-time window you choose and shows it.
Because the classical rule starts the count from the ninth sign counted inclusively for even signs, rather than from the sign itself. Implementations that count exclusively land one sign off for every even-sign planet.
No. The calculator computes and returns; it writes nothing. That is enforced by an automated test that fails if the code path so much as touches the database layer.
Standard Lahiri (Chitrapaksha), with the true lunar node. Software on another ayanamsha or on the mean node will give different numbers: the true and mean nodes are a median of 1°03′ and up to 1°59′ apart (1900–2025), enough to move Rahu and Ketu into another nakshatra or sign.
Each varga magnifies the chart differently, and each demands a different amount of birth-time precision. The hub lists all sixteen with what the śāstra assigns to them.
Divisional charts explained