Navamsa (D9), D10 and the divisional charts: what they show and how to read them

Ask an astrologer about marriage and, after looking at your birth chart, they will usually turn to your navamsa. Ask about work and they reach for the D10. These divisional charts come from the same birth moment as your kundli, but each one magnifies a single area of life.

They are also easy to misuse. Explanations often skip the tables, say nothing about how exact the birth time must be, and treat the navamsa as if it settled someone’s fate. This guide covers what each chart is, how its signs are worked out, how astrologers read the D9 and the D10, and which charts your birth time can actually support.

What is a divisional chart?

Your birth chart, the D1 or rasi chart, places each planet in one of twelve signs of 30°. A divisional chart, or varga, cuts every sign into equal parts and gives each part a sign by a fixed rule. A planet’s sign in the varga is the sign of the part it falls in. The number after the D is the number of parts: the D9 cuts each sign into nine parts of 3°20′, the D10 into ten parts of 3°.

Brihat Parashara Hora Shastra describes sixteen vargas, from the D1 to the D60, each read for its own area of life. JyotishiVani’s engine calculates all sixteen, and the app draws the six used most often.

The vargas as JyotishiVani applies them. The app draws the first six; the D60 is shown for reference.

A varga is read alongside the birth chart, never instead of it. The usual practice is to see what the birth chart promises for a matter, then check the varga for that matter. A promise repeated in the varga is read as firm; one the varga does not support is read as weaker.

How the parts are counted

Each varga has its own counting rule. These are Parashara’s rules, the ones JyotishiVani applies. Odd signs are Aries, Gemini, Leo, Libra, Sagittarius and Aquarius; even signs are Taurus, Cancer, Virgo, Scorpio, Capricorn and Pisces.

• D2 (hora): in odd signs the first 15° is the Sun’s hora (Leo) and the second the Moon’s (Cancer); in even signs the order is reversed.
• D7 (saptamsa): odd signs count from the sign itself, even signs from the 7th sign from it.
• D9 (navamsa): fire signs count from Aries, earth signs from Capricorn, air signs from Libra and water signs from Cancer.
• D10 (dasamsa): odd signs count from the sign itself, even signs from the 9th sign from it.
• D12 (dwadasamsa): every sign counts from itself.
• D60 (shashtiamsa): every sign counts from itself, one sign for each half degree.

So the Sun at Taurus 5° is in the second navamsa of Taurus (3°20′ to 6°40′). Taurus is an earth sign, so its navamsas start from Capricorn, and the second one is Aquarius. The Sun’s navamsa sign is Aquarius.

Several vargas also have other counting methods in the literature, and some software uses one of those by default. The same birth can therefore give a different D2 or D10 in two programs, with neither making an arithmetic mistake. That is one more reason, alongside the ayanamsa and the birth time, that charts from different sources disagree.

The navamsa (D9) table

With nine navamsas in each sign, the zodiac has 108. The counting rule makes them run in one unbroken cycle: the nine navamsas of Aries are Aries to Sagittarius, Taurus picks up at Capricorn, Gemini at Libra, and so on, around the zodiac nine times. Each navamsa is also exactly one quarter (pada) of a nakshatra, so the 108 navamsas are the 108 padas of the 27 nakshatras.

To use the table, find a planet’s sign and degree in your birth chart and read across to its part.

Parashara’s navamsa, generated by script and checked point by point against JyotishiVani’s engine.

Two examples. The Moon at Gemini 18° is in the sixth part of Gemini (16°40′ to 20°), so its navamsa is Pisces. A lagna at Leo 2° is in the first part of Leo, so the navamsa lagna is Aries.

Vargottama: the same sign in both charts

A planet is vargottama when it occupies the same sign in the birth chart and the navamsa. Texts read this as giving the planet steadiness and strength (see vargottama in the glossary). The table shows exactly where it happens, and each sign has one vargottama part:

Read from the navamsa table above.

Because one part in nine is vargottama, each planet has about a one-in-nine chance of it. In 200,000 random births across India between 1950 and 2010, 55% of charts had at least one of the seven planets vargottama, and the lagna was vargottama in 11%. In the tradition’s terms it is a real strengthening, but a common one, not a rare sign of destiny. Rahu and Ketu are always vargottama together, because the navamsa opposite a vargottama navamsa is vargottama too.

How exact must your birth time be?

The lagna turns through all twelve signs in a sidereal day of about 1,436 minutes. A varga’s lagna turns with it, through many more parts: 108 in the navamsa, 120 in the D10 and 720 in the D60. On average, then, a new navamsa rises every 1,436 ÷ 108 ≈ 13.3 minutes, a new D10 part every 12 and a new D60 part every 2.

Those are averages. Signs rise at different speeds, so their parts do too. At Delhi’s latitude, Pisces rises in 85 minutes and Cancer in 141, and a single navamsa takes from about 9 to 16 minutes:

Time each sidereal sign takes to rise, computed with Swiss Ephemeris (Lahiri) for 15 January 2026; each navamsa is one ninth of it, on average.

What matters in practice is how likely an error in your birth time is to change a chart’s lagna. If the true time is equally likely to fall anywhere, the chance is roughly the error divided by the length of a part:

Computed with JyotishiVani’s engine for Delhi on 15 January 2026. The average is 1,436 minutes divided by the number of parts in the zodiac.

So which charts can your birth time support?

• The birth chart’s lagna and houses need a time good to about 15 minutes. A 15-minute error changes the lagna in about one chart in eight, more often when the lagna is near the edge of a sign.
• The D7, D9, D10 and D12 need a time good to a few minutes, such as a hospital record. Even with a 5-minute error, their lagna changes in 29% to 50% of charts.
• The D60 needs the time to the minute. Even a one-minute error changes its lagna about half the time, which is why astrologers usually rectify the birth time before reading it.
• The planets’ positions in the vargas are far steadier than the varga lagna. The Moon changes navamsa about every six hours and the Sun about every three days, so a planet’s navamsa sign, and whether it is vargottama, usually survives an approximate birth time.

Navamsa or birth chart: which matters more?

The birth chart comes first. It shows the matters of life and where they sit; the navamsa shows the strength behind each planet and confirms or qualifies what the birth chart promises. In Parashara’s vimsopaka scheme, which scores a planet’s dignity across the sixteen vargas out of 20, the D1 carries 3.5 points and the D9 carries 3 (the D60 carries 4). In the six-varga version the D1 carries 6 and the D9 carries 5. The texts treat the two as close partners, with the birth chart leading.

Some common readings follow from that. They describe how the tradition weighs a planet, not what will happen:

• A planet well placed in both charts is read as reliable.
• A planet weak in the birth chart but strong in the navamsa, for example debilitated in the D1 but exalted or in its own sign in the D9, is read as stronger than the birth chart alone suggests.
• A planet strong in the birth chart but debilitated in the navamsa is read as less dependable than it looks.
• A vargottama planet is read as steady.

The practical point: with an approximate birth time, rely on the birth chart’s lagna and on the planets’ navamsa signs, not on the navamsa lagna.

How to read the navamsa for marriage

This is how astrologers commonly work through it, and Vani, JyotishiVani’s AI astrologer, follows the same order: the birth chart, then the navamsa, then the dashas. It tells you where to look, not what will happen.

1. Start in the birth chart. Look at the 7th house (partnership), the planets in it and aspecting it, and the 7th lord: the house it sits in and its dignity. Add Venus, the natural significator of partnership, and Jupiter. In Jaimini practice, add the darakaraka, the planet with the lowest degree among the chara karakas, read as the significator of the spouse.
2. Find the 7th lord in the navamsa. Look up its navamsa sign and judge its dignity there. Is it exalted, in its own or a friend’s sign, or debilitated? Is it vargottama?
3. Check Venus in the navamsa. Venus is exalted in Pisces and debilitated in Virgo; its navamsa sign is read for how partnership is experienced.
4. Look at the navamsa’s own 7th house, counted from the navamsa lagna, with its lord and occupants. Do this only if your birth time supports the navamsa lagna.
5. Find the darakaraka in the navamsa, and its dignity there.
6. Weigh the agreement. When the birth chart and the navamsa point the same way, the indication is read as firm; when they differ, as mixed.
7. Leave the timing to the dashas. The navamsa describes; the Vimshottari dasha and the slow transits time.

Many astrologers also read the upapada (UL), the arudha of the 12th house, for marriage.

A worked example. Suppose the lagna is Leo. The 7th house is Aquarius, ruled by Saturn. If Saturn is at Libra 15° in the birth chart, the Libra row of the table puts it in Aquarius in the navamsa: exalted in the birth chart, in its own sign in the navamsa. If Venus is at Taurus 2°, its navamsa is Capricorn, a friend’s sign. An astrologer would note a 7th lord that is strong in both charts and a Venus that is comfortable in both, and then turn to the dashas. None of this, on its own, says whether or when anyone marries.

How to read the D10 for career

1. Start in the birth chart. Look at the 10th house (career, status and public action), its occupants and aspects, and the 10th lord’s house and dignity. The 6th (service) and 11th (gains) support it. The natural significators of career are the Sun, Saturn, Mercury and Jupiter. In Jaimini practice, add the amatyakaraka, the planet with the second-highest degree, read as the significator of career, counsel and the means by which you work.
2. Find the birth chart’s 10th lord in the D10, and its dignity there.
3. Find the amatyakaraka in the D10, and its dignity there.
4. Read the D10’s own lagna and 10th house, with their lords, if your birth time is good to a few minutes.
5. Weigh the agreement, then time it with the dashas of the planets linked to the 10th house and with Jupiter’s and Saturn’s transits over it.

One point of language trips people up. “The 10th lord in the D10” can mean the birth chart’s 10th lord placed in the D10, or the D10’s own 10th lord, and these are often different planets. Astrologers use both, and a clear reading says which it means. JyotishiVani names the birth-chart lord by its role, in sentences such as “In the D10, Saturn, which rules your career house in the birth chart, falls in Aquarius.”

The D2 hora chart, and why yours may look different elsewhere

In Parashara’s hora, each sign is split into two halves of 15°. In odd signs the first half belongs to the Sun (Leo) and the second to the Moon (Cancer); in even signs it is the other way round. So every planet in this D2 sits in either Leo or Cancer, and the chart is read for wealth by which planets fall in the Sun’s hora and which in the Moon’s.

Because the second half of one sign and the first half of the next always share a hora, the D2 lagna changes only in the middle of each sign: twelve times a day, about every two hours on average. This D2 needs no more birth-time precision than the birth chart. (The hora lagna, a special lagna used for wealth, is a different thing from the lagna of the D2.)

JyotishiVani uses Parashara’s hora. Some other software defaults to a different hora method, such as a cyclical (parivritti) hora that spreads the planets over all twelve signs. The two charts can look nothing alike, yet neither program has made an error: they follow different definitions. If your D2 differs between two sources, check the method before anything else.

The D7 chart and children

The saptamsa (D7) divides each sign into seven parts of about 4°17′. Parashari texts read it for children and creativity, alongside the 5th house of the birth chart, its lord, and Jupiter, the natural significator of children. It is a traditional reading, not medical or fertility advice.

JyotishiVani does not use the D7, or any chart, to predict a baby’s sex. Determining or selecting a baby’s sex is illegal in India under the PCPNDT Act, and no chart can tell it. If you ask Vani, it says so plainly and offers to talk about the general themes of children and family instead.

The D12 and the D60

The dwadasamsa (D12) divides each sign into twelve parts of 2°30′, counted from the sign itself, and is read for parents and lineage. A new part rises about every 10 minutes.

The shashtiamsa (D60) divides each sign into sixty parts of half a degree. Brihat Parashara Hora Shastra gives it the greatest weight of all the vargas, and the tradition reads it for past karma. It is also the chart a birth time can least support: a new part rises every 2 minutes on average, so even a one-minute error changes its lagna about half the time. Treat any D60 reading built on an unrectified birth time with caution. JyotishiVani calculates the D60 but does not draw it, and as with every chart, it does not state a position that changes within your birth-time window.

How JyotishiVani shows divisional charts

• The Kundli tab draws the D1, D9, D10, D7, D2 and D12 in North Indian or South Indian style, with each planet’s sign, degree and nakshatra.
• Divisional charts need a birth time within 15 minutes. With a rougher time, the chart is locked and the app says what it needs.
• Even then, the app recalculates each chart across your birth-time window. A lagna or planet sign that changes inside the window is marked as depending on the exact birth time, never guessed. A North Indian chart is drawn only when its lagna is settled, since its houses depend on it; the South Indian style still shows the planets by sign.
• Every varga follows Parashara’s rules with the Lahiri ayanamsa, including Parashara’s hora for the D2.
• When you ask Vani about marriage, career, children or money, it checks the matching varga (D9, D10, D7 or D2) as one step of the step-by-step method for reading a kundli.

See your own divisional charts on the Kundli tab, and read why charts from different sources disagree.