The weight the tradition puts on this chart
This is not a claim we are making about the D-60; it is arithmetic from the strength tables. In the Daśavarga scheme of Vimśopaka Bala, the Ṣaṣṭyāṁśa is allotted 5 of the 20 points — while the Rāśi gets 3 and the Navāṁśa 1½. The sixtieth division alone outweighs the birth chart and the Navāṁśa put together.
In the full Ṣoḍaśavarga scheme it takes 4 points against the Rāśi's 3½ and the Navāṁśa's 3, and is still the largest single share. Across both schemes the message is the same and it is unambiguous.
The practical consequence is uncomfortable and worth stating: a graha magnificently placed in the Rāśi and the Navāṁśa, and debilitated or in a malefic amśa in the D-60, will give inferior results in the end. The D-60 is the final arbiter, and it frequently disagrees with the charts people actually look at.
How the Ṣaṣṭyāṁśa is calculated
Each sign is divided into sixty parts of 30 minutes each — half a degree per division. The calculation ignores the sign a graha is in and works only from the degrees it has travelled within that sign.
Take the degrees traversed, multiply by two, divide by twelve, and add one to the remainder. The result is the sign number in which the ṣaṣṭyāṁśa falls, and the lord of that sign rules the division.
Each of the sixty divisions also has a name, and the names are the point of the chart. They run from Ghora (terrible) and Rākṣasa through Deva, Kubera, Amṛta, Pūrṇacandra and Śrī-like names, to Kālinaśa, Mṛtyu, Kāla and Dāvāgni — some plainly benefic, some plainly malefic. The order runs one way in an odd sign and reverses in an even one. Grahas in benefic ṣaṣṭyāṁśas produce auspicious results; grahas in malefic ones destroy what they touch.
Reading the past life
The D-60 is read differently from other charts, and the difference is a real one. In the Rāśi you can distinguish the Lagna (the true self), the Lagna lord (the intelligence), the Ārūḍha Lagna (the perceived self) and the ārūḍhas of individual grahas. In the Ṣaṣṭyāṁśa those distinctions collapse: the subject is an entire completed life, not a moment within one.
So the working method is to take the Ārūḍha Lagna of the D-60 as the lagna of the previous incarnation, and read the chart from there as though reading a birth chart — the 10th from it for what that person did, the 9th and 12th for their spiritual standing, the 3rd for how their life ended, the 5th for their learning.
What comes out of this can be checked, which is unusual for the subject. Present-life phobias with no cause, inexplicable aversions, drives that do not fit the upbringing, and talents that appear without training are the ordinary evidence for what a D-60 reading claims. A reading that cannot be matched to something of that kind should be held loosely.
Two minutes of birth time changes this chart completely
Each ṣaṣṭyāṁśa is half a degree wide, so the D-60 Lagna moves to a new division roughly every two minutes. A birth time recorded to the nearest five minutes — which is a good record by most standards — leaves the D-60 Lagna genuinely uncertain, and a time recorded to the nearest quarter hour makes the chart unusable as it stands. This is not a reason to avoid the chart; it is a reason to rectify the birth time against dated life events before drawing conclusions from it. Any tool that hands you a confident D-60 reading without raising this has not told you the most important thing about the chart.
The Ṣaṣṭyāṁśa at a glance
Every figure here is specific to this division. The Vimśopaka rows give the share of the twenty-point strength score the Ṣaṣṭyāṁśa carries in each classical scheme — a blank means the division is not counted in that scheme at all.
| D60 | |
|---|---|
| Divisions per sign | 60 |
| Arc of one division | 30' |
| Divisional Lagna changes every | about 2 minutes |
| Vimśopaka weight · Ṣaḍvarga (6) | — |
| Vimśopaka weight · Saptavarga (7) | — |
| Vimśopaka weight · Daśavarga (10) | 5 |
| Vimśopaka weight · Ṣoḍaśavarga (16) | 4 |
Counted in 2 of the four schemes. The more schemes a division appears in, the more the tradition treats it as load-bearing rather than specialist.
How this is computed
Positions come from an astronomical ephemeris, converted to the sidereal zodiac on the Lahiri (Citrapakṣa) ayanāṁśa and computed by our own Parāśara engine — no pre-written results, and no language model anywhere near a number. Where the classical texts disagree, this page names the convention we follow instead of quietly picking one.