--- title: "Trimsamsa Chart (D30): Misfortune, Weakness and the Ten-Sign Chart" slug: "trimsamsa-chart-d30" canonical_url: "https://mahadasha.com/trimsamsa-chart-d30" description: "The Trimsamsa chart (D30) can never place a planet in Cancer or Leo. Its divisions are unequal, its signs are ten, and both facts change how you read it." published_date: "2026-08-07 10:17:00" modified_date: "2026-08-07 10:17:00" author: "Pawan Acharya" keywords: "trimsamsa chart d30, d30 chart, trimsamsa chart misfortune, d30 chart reading, trimsamsa calculator, unequal divisions varga, divisional charts" locale: "en" --- # Trimsamsa Chart (D30): Misfortune, Weakness and the Ten-Sign Chart > Five, five, eight, seven, five. It is the only varga whose divisions are unequal, the only one that excludes two signs entirely, and the one most likely to reveal a mis-implemented calculator. # Trimsamsa Chart (D30): Misfortune, Weakness and the Ten-Sign Chart The Trimsamsa chart (D30) is where the tradition put the difficult material: misfortune, moral weakness, the harm a person suffers and the harm they cause. It sits in Parashara's six chart group, so it has been in continuous use for as long as the Navamsa has, and it is not an obscure corner of the system. It is also the strangest chart in the set, and the strangeness is the fastest way to check whether your software is doing it correctly. ## How the Trimsamsa chart (D30) is derived Every other varga divides a sign into equal parts. This one does not. In an odd sign the bands run 5 degrees to Mars, 5 to Saturn, 8 to Jupiter, 7 to Mercury and 5 to Venus. In an even sign the order reverses and each planet contributes its other sign: 5 degrees to Venus, 7 to Mercury, 8 to Jupiter, 5 to Saturn and 5 to Mars. The assignment is by planet, not by counting. Mars gives Aries in an odd sign and Scorpio in an even one. Saturn gives Aquarius then Capricorn, Jupiter gives Sagittarius then Pisces, Mercury gives Gemini then Virgo, Venus gives Libra then Taurus. A planet at 14 degrees Aries falls in the third band, since 14 is past 10 and short of 18. That band is Jupiter's, and in an odd sign Jupiter contributes Sagittarius. A planet at 14 degrees Taurus falls in the third band of an even sign, which is also Jupiter's, and there Jupiter contributes Pisces. ## Ten signs, not twelve Five planets own trimsamsas. The Sun and the Moon own none. So Cancer and Leo, the signs the luminaries rule, never appear in a Trimsamsa chart. Not rarely. Never, for any planet, in any chart, ever cast. Ten signs are reachable and two are not. That is the cheapest correctness test in the whole varga system. If a D30 on your screen shows a planet in Cancer or in Leo, the program computed it with equal one degree divisions instead of the classical bands, which is a common shortcut and produces a different chart. Check yours the moment you open it. The [Hora chart (D2)](https://mahadasha.com/hora-chart-d2) is the mirror image of this arrangement: there the luminaries own everything and the five planets own nothing, so only Cancer and Leo appear. Between them the two charts partition the ownership of the zodiac, and the classical writers clearly saw them as a pair. ## What the Trimsamsa chart (D30) shows Arishta, the general category of harm. Accidents, reversals, the trouble that a life is exposed to. The chart describes the kind and the register of it rather than naming an event or fixing a date. Moral weakness, which is the classical framing and needs handling with care. The older texts are direct about this chart describing vice, and read literally they produce judgements that no responsible astrologer would deliver to a client. The useful modern reading is about the pressure a character is least equipped to resist, which is descriptive rather than condemnatory and considerably more accurate. A note on the historical use. Several classical passages apply the Trimsamsa specifically to assessing a woman's character in the context of marriage, and that application is a product of the society that produced the texts rather than of the astrology. It is not used that way here and it has no place in a modern reading. Health tendency, which overlaps with the [Shashthamsha chart (D6)](https://mahadasha.com/shashthamsha-chart-d6) . The difference is that the D30 has a BPHS derivation and a Vimshopaka point behind it while the D6 has neither, so for a serious question this is the chart to use. ## How to read it beside the birth chart Look first at which planet's trimsamsa each of your key placements falls into. That is the real content of the chart. A lagna lord in a Saturn trimsamsa describes a constitution that meets difficulty with endurance, and the same lord in a Mars trimsamsa meets it by fighting. Those are different lives under the same pressure. Then take the sixth, eighth and twelfth lords of the birth chart into the D30 and note where they land. If your D1 carries [Mars in the 8th house](https://mahadasha.com/mars-in-8th-house) , the Trimsamsa will tell you whether that placement describes a life with recurring upheaval or a person who is simply unafraid of it. Read the benefics too, and this is the step people skip. Jupiter owns the widest band in every sign, 8 degrees out of 30, which means more planets fall into a Jupiter trimsamsa than into any other. A chart is statistically more likely to be protected here than harmed, and a reading that only counts the difficult placements is describing a chart the arithmetic does not support. ## Where the D30 sits in the classical scheme The Trimsamsa is a Shadvarga chart, so it appears in every strength group from six charts upward. Its Vimshopaka weight is 1 out of 20, the same as the Hora and the Drekkana and double what the Dashamsha receives. Birth time tolerance is unusual because the bands are unequal. The narrowest is 5 degrees, which the ascendant crosses in about twenty minutes, and the widest is 8 degrees, which takes over half an hour. A time good to within ten minutes is generally enough, which makes the D30 one of the more forgiving charts in the set despite its high divisor. ## Frequently asked questions ### What does the Trimsamsa chart (D30) show? Misfortune, harm and moral weakness, along with health tendencies. It describes the register of trouble a chart is exposed to rather than scheduling any of it. ### Why are Cancer and Leo missing from my D30? Because the Sun and the Moon own no trimsamsa. Only five planets divide the thirty degrees between them, so their ten signs are the only ones reachable. Nothing is missing. ### Why are the divisions unequal? Because the classical rule allots the degrees by planet rather than by equal parts: 5, 5, 8, 7 and 5 in an odd sign, reversed in an even one. A program using equal one degree parts is computing a different chart. ### Does a difficult D30 mean I am a bad person? No. Read as pressure points rather than as a verdict, it describes where a character is least resilient. The judgemental framing in the older texts belongs to their period, not to yours. Cast it with the [Trimsamsa calculator](https://mahadasha.com/trimsamsa-calculator) , checking first that no planet has landed in Cancer or Leo, and read it against the [6th house in astrology](https://mahadasha.com/6th-house-astrology) .