Dasamsa (D10): your career chart, sign by sign

Last updated 25 October 2026

Fill in when and where you were born to place every planet and the Lagna in the dasamsa, the tenth-division chart astrologers open for questions about work. Below the calculator: the rule behind each sign, how a consultant reads the chart, and why the birth time decides whether the D10 Lagna can be trusted.

The dasamsa rule, step by step

The calculator first finds the sidereal longitude of the ascendant and of all nine grahas at your birth moment, using the Lahiri ayanamsa. You give the date, the clock time, the place (from the list, or as latitude and longitude) and the UTC offset; choosing a listed city fills in its usual offset, which you can change for summer time or for India’s wartime clock. Without a place the planets are still placed, but the chart has no Lagna.

Each 30-degree sign is then cut into ten equal slices of three degrees, the dasamsas. Parashara’s rule decides which sign each slice belongs to. For the odd-numbered signs (Mesh, Mithun, Singh, Tula, Dhanu, Kumbh) counting begins at the sign itself and runs forward through the zodiac. For the even-numbered ones (Vrishabh, Kark, Kanya, Vrishchik, Makar, Meen) counting begins nine signs on. Take Mars at 14 degrees of Kark: that is slice five of an even sign, so the count opens at Meen, nine signs from Kark, and five signs from Meen, Meen included, brings you back to Kark.

The result gives the D10 Lagna, a drawing of the dasamsa beside the rashi chart (switchable between the North and South Indian layouts), and a table of every planet with its birth-chart degree, which of the ten parts it occupies and its dasamsa sign. Any planet that keeps its rashi sign in the dasamsa is flagged, and a planet sitting right at a slice edge gets a note saying when it crosses (for the Moon, any edge it would reach in roughly thirty minutes).

What an astrologer reads in the D10

In Brihat Parashara Hora Shastra the dasamsa appears among the divisional charts, tied to a person’s actions and achievements in the world. In practice most consultants open it for one kind of question: work. Will this job suit me, is a change of field sensible, why does recognition come slowly, is now a reasonable time to set up on my own.

A careful reading moves between the two charts rather than staying in the D10. The usual order is roughly this:

• The tenth house and its lord in the birth chart first. Their sign, house, aspects and strength set out the basic promise about career.
• Where that tenth lord lands in the D10. A tenth lord that falls in a kendra or trikona of the dasamsa, or stands exalted or in a sign it owns there, is read as support; one that falls in the sixth, eighth or twelfth from the D10 Lagna asks for a closer look at what blocks or delays.
• The D10 Lagna and its own tenth house. The dasamsa is read as a chart in its own right: its Lagna lord, the planets in its tenth house and the lord of that tenth.
• The natural significators. Tradition links the Sun with authority and government, Saturn with service, labour and long effort, Mercury with trade, writing and calculation, and Jupiter with teaching and advice. How each of them sits in the D10 colours the description of the work.
• Timing. The planets that stand out in the dasamsa are then watched in the dasha sequence: a period of a planet well placed in the D10 is often where an astrologer looks for promotions, moves or a change of direction.

Two misreadings come up often. The first is treating the D10 as a separate horoscope that overrides the birth chart; it refines the birth chart and cannot invent a promise that is absent there. The second is reading a single placement, such as Saturn in the D10 tenth, as a verdict on a whole working life. A practitioner weighs several factors and will usually say how confident they are. Parashara also names a presiding deity for each of the ten parts, the eight guardians of the directions plus Brahma and Ananta; some astrologers use these names, and the calculator does not show them.

The D10 Lagna and the clock

Apart from the Moon, the grahas move slowly enough that their dasamsa signs seldom hinge on the minute of birth. The ascendant is another matter. It needs roughly two hours to cross one sign, which leaves it around twelve minutes in each dasamsa. A time written down as 10:15 or 10:30, as hospital records often are, can leave the D10 Lagna open.

Your result states the span of clock time in which the D10 Lagna stays the same, and warns when a change is only a few minutes away. One quirk of the rule is worth knowing: the closing slice of any odd sign and the opening slice of the even sign that follows share one dasamsa sign, so the D10 Lagna holds for about twice as long across that boundary, even though the birth-chart Lagna changes sign. If your window is narrow, tell the astrologer; they may compare it with dates of career events before relying on the D10 houses.

Questions to ask your astrologer about your D10

• Where does my birth-chart tenth lord fall in the dasamsa, and how much weight do you give that?
• My D10 Lagna changes a few minutes from the recorded time: which version are you reading, and why?
• Which planet in my D10 do you see as the main career indicator, and which dasha brings it into play?
• Are you reading work themes from the D10 or naming a profession, and how sure are you?
• Does anything in the D10 disagree with my birth chart about career, and how do you resolve that?

If you are preparing for a career consultation, our guide on what to expect in an astrology reading explains how a session usually runs and what to bring.

Where the ten dasamsas of each sign begin and end

Computed from the same rule the calculator uses: the sign of the first three degrees and of the last three degrees of each birth-chart sign. The slices in between follow in zodiac order.