D45 Chart Calculator (Akshavedamsa)

In the classical assignment, the paternal line and what comes down from it. The Sun as pitri karaka and the birth chart's 9th lord located in the D45 are the two placements, with the ninth house of the D45 itself as the third. Jupiter, as the significator of dharma, is often read alongside the Sun here.

The wider assignment — general conduct — is the one that survives in modern practice, and it is worth being careful with. A chart does not measure anybody's morality, and a varga read as a verdict on character is being used in a way that has no classical warrant and no defensible modern one either.

The same honesty as the D40 applies. This is a minor division with thin literature, forty minutes of arc per part, and a correspondingly extreme birth-time sensitivity. It confirms; it does not lead.

Each sign is divided into forty-five Akshavedamsas of 0 degrees 40 minutes. The count starts from a sign fixed by modality: a movable sign counts from Aries, a fixed sign from Leo and a dual sign from Sagittarius — the same three fire signs, and the same assignment, that the D16 uses.

That rule is the whole difference between a divisional chart and a decorative second drawing of the birth chart. The start sign — which sign the parts are counted from — is fixed per varga by classical text and is not the cyclic multiplication most calculators use. The two agree only for divisors 16, 20 and 27.

Parashara lists the Akshavedamsa among the sixteen in the sixth chapter of the Brihat Parashara Hora Shastra with the movable-fixed-dual rule. The assignment is pitri-kula — the father's line — and, in the broader phrasing that later writers prefer, sarva or general conduct.

As with the D40, there is very little classical commentary. The two are almost always mentioned together and almost never explained, and what circulates now as D45 technique is largely extrapolated from the D9 and the D12 rather than sourced. This page publishes the computed chart, states the rule, and declines to invent a method for it.

1. Read the Sun first As pitri karaka, the Sun's D45 dignity and house is the varga's clearest line in its classical assignment. Jupiter reads alongside it as the significator of dharma.
2. Locate the birth chart's 9th lord in the D45 The specific statement about the paternal and dharmic theme over a lifetime. The lord seen in the division says more than the division's own ninth house.
3. Treat the conduct reading as description, not judgement The classical phrase is about general conduct, which in practice means the manner in which a person operates. It is not a moral score, and nothing in the tradition supports reading it as one.
4. Use it to confirm the D9 and D12, not to override them The Navamsa and the Dwadasamsa carry the durability and lineage readings. The D45 agrees or it does not, and disagreement in a varga this fine is far more often a birth-time problem than a finding.
5. Check the birth time before reading the lagna At forty minutes of arc a division, the D45 ascendant changes roughly every two and a half minutes. Without a rectified time the D45 lagna is arbitrary, and the planets are the only part of the chart worth reading.

A planet occupying the same sign in the birth chart and in the D45 is vargottama in this division — literally 'best in division'. The reading is stability rather than strength: the planet is doing the same thing at two resolutions of one chart, so whatever it signifies is consistent rather than conditional. The result table above marks them.

Two cautions. A consistently difficult placement is also vargottama, and the reading is then that the difficulty is stable. And in the D12 and the D60 the division counts from the sign itself, so a planet at the very start of a sign is vargottama by construction rather than by merit — a property of the rule and not a dignity. The vargottama calculator checks every planet against every division at once.

A wrong divisional chart does not look wrong. It renders cleanly, it is internally consistent, and nothing warns you — which is why the same three mistakes have propagated across the internet for twenty years. All three come from computing a varga with arithmetic instead of with its classical rule.

The cyclic shortcut. Multiplying the sign index by the divisor and taking the result modulo twelve is a tempting one-liner and it agrees with Parashara only for divisors 16, 20 and 27. For 12 and 60 it always yields a multiple of twelve — Aries — so it discards the planet's own sign and puts an entire chart in one sign. A D12 or D60 in which every planet shares a sign is this bug, and it is common enough that most readers have seen one without recognising it.

The missing odd-even reversal. The D7 counts from the 7th sign in an even sign and the D10 from the 9th. A generic divisor ignores both, which displaces every even-sign planet by six signs in a D7 and eight in a D10 — roughly half the chart, moved half the zodiac, with no symptom at all.

Treating the D30 as an equal division. The Trimsamsa has five unequal bands per sign, reversed in even signs. Dividing by thirty instead produces a chart that is wrong at every degree of every sign, and one that shows planets in Cancer or Leo — signs a real Trimsamsa cannot contain.

The check for this varga: the start sign follows modality exactly as the D16 does — Aries, Leo or Sagittarius. If a D45 you have been given anywhere fails that test, the start-sign rule was not applied and every placement in it is suspect.

The start-sign rules this site uses are stated in the engine and pinned by a test against a hand-derived chart, with a published citation for each of the sixteen. That is not a claim of infallibility; it is a claim that the rules are written down where they can be checked, which is the only kind of claim a calculator can honestly make.

A Akshavedamsa division is 40 minutes of arc wide. The ascendant moves through roughly one degree every four minutes of clock time, so the D45 ascendant holds for about 2.7 minutes before it changes sign. That figure is an average: the rate varies with latitude and with which sign is rising, and near the poles it varies a great deal.

Planets are far steadier than the ascendant, which is why a rounded birth time damages a divisional chart unevenly rather than uniformly. The Moon is the fastest of them and changes Akshavedamsa about every 73 minutes; the Sun takes around a month per sign in the birth chart and correspondingly longer per division; Jupiter and Saturn are effectively fixed across a whole day. So if your recorded time is uncertain, distrust the ascendant first and the Moon second, and read the slow planets with confidence.

This page assumes a rectified birth time — a time established or confirmed against events, rather than one recalled to the nearest quarter hour. Every divisional chart beyond the D9 is highly sensitive to birth time, and the finer ones are not merely less reliable on a rounded time but arbitrary: at half a degree per division the D60 ascendant changes about every two minutes, so a time rounded to five minutes leaves two or three equally likely charts and no way to choose between them. If you do not have a time you trust, the honest thing is to read the birth chart and the Navamsa and stop there.

The ascendant is not a property of the instant alone. It is the point of the ecliptic rising over a particular horizon, so it is a function of the moment and of the coordinate together, and the two trade off exactly: the sky turns one degree every four minutes, and one degree of longitude is four minutes of local time. Moving 40 minutes of arc of longitude — about 69 km east or west at Indian latitudes — moves the ascendant by one whole Akshavedamsa part, which is to say it hands you a different D45 ascendant and rotates every house in the chart above.

Latitude matters separately and less obviously. It does not shift the clock, it changes how fast each sign climbs — the ascensional difference — so two places on the same meridian and the same instant still rise different degrees, and the gap grows the further from the equator you are. This is why a chart cast for a state capital is not a rounding of a chart cast for a village two districts away; it is a different chart that happens to look plausible.

So enter the town you were actually born in. The place search above accepts any village, town or city a geocoder knows, not a shortlist of metros, and it prints the latitude, longitude and timezone it used above the result so you can check them against a map. Since a D45 division is the unit this page is built from, a birth place picked for convenience damages the result in the same way and by the same mechanism as a birth time rounded to the nearest quarter hour.

The D45 does not describe your father. It describes a paternal theme in your own chart. Your father has his own horoscope and that is the chart that describes him.

It does not measure character or morality. No chart does. A reading that grades somebody's conduct from a divisional chart has no classical basis and no defensible modern one.

It should not be read on a rounded birth time. Two and a half minutes per D45 ascendant sign means a time recorded to the nearest quarter hour gives a lagna that could be any of six.

Two limits apply to every page in this family and are worth stating in one place. Divisional charts beyond the D9 are highly birth-time sensitive, and every reading here assumes a rectified birth time. And nothing on this site is medical, legal or financial advice: a chart is a traditional interpretive framework, not a diagnosis, not a forecast, and never a reason to delay professional help.

Parashara's sixteen divisions are a single instrument, not sixteen instruments. The birth chart is cut at sixteen different resolutions — halves, thirds, quarters, sevenths, ninths, tenths, twelfths, sixteenths, twentieths, twenty-fourths, twenty-sevenths, thirtieths, fortieths, forty-fifths and sixtieths — and a planet's condition is judged from how it behaves across them rather than from any one. The D45 is one of those sixteen and is read in that company.

The weighting is called Vimshopaka Bala, twenty-point strength, and it is where the tradition states which divisions carry most. D1, D9 and D60 take the largest shares; the D2, D3, D7, D10 and D12 sit in the middle; the D16, D20, D24, D27, D40 and D45 carry least. That ordering is worth respecting. A reading built on a minor varga against the evidence of the major ones is almost always reading a birth-time error.

Two of the sixteen are not equal divisions and must never be computed with a generic divisor. The D30 Trimsamsa has five unequal bands per sign, reversed in even signs. The D60 Shashtiamsa is an equal division for the rashi but its sixty deities are enumerated forwards in odd signs and backwards in even ones. Beyond those, the start-sign rule differs per varga and only coincides with the cyclic shortcut for divisors 16, 20 and 27 — for 12 and 60 the shortcut collapses the whole chart into Aries. Every chart on this site uses the classical rules, which are pinned by a test against a hand-derived chart.

D8 Ashtamsa and D11 Rudramsa are deliberately absent from this engine and from this site. They are not part of Parashara's sixteen, and the published rules for them disagree with each other, so there is no single chart to compute. Publishing one would mean choosing a rule and not saying so.