The dvādaśāṁśa applied to itself
The D-12 is the chart of parents and of what came to you through them. The Dvādaśa-dvādaśāṁśa divides that result twelvefold again, which is why it is sometimes described as the lineage behind the lineage — what stands behind the parents.
That description is a natural extension of the construction, and it should be held loosely. The D-12 is where the classical weight sits; this chart locates a graha inside its dvādaśāṁśa, and that is what can be stated without strain.
It is the finest chart computed on this site, and the gap between what can be calculated and what can be known is wider here than anywhere else in the varga set.
How the D-144 is constructed
One rule, twice. Twelve times twelve is a hundred and forty-four.
- First — the dvādaśāṁśa
- Each sign into twelve parts of 2°30', counted from the sign itself. This is the ordinary D-12.
- Expand the remainder
- The position within that 2°30' part is stretched to a full sign.
- Second — the dvādaśāṁśa again
- The twelvefold rule is applied to that expanded position. Where it lands is the D-144 sign.
- The result
- A hundred and forty-four divisions per sign of 12'30" each — 1,728 across the zodiac, the finest grid on this site.
Where this chart stands in the tradition — plainly
Outside the sixteen, no Vimśopaka weight, no signification assigned by Parāśara. The construction is a clean compound of a classical division with itself; the chart is a later usage.
And at twelve and a half minutes of arc, a practical limit arrives before a doctrinal one. The divisional Lagna changes about every fifty seconds. A birth time recorded to the nearest minute leaves the D-144 Lagna genuinely undetermined, and a time recorded to the nearest five minutes — which is most times on most certificates — leaves the whole chart arbitrary.
This page computes it because the engine computes it and because a reader looking for a D-144 deserves a correct one rather than someone else's guess. It does not pretend the output carries more weight than the birth time behind it.
What a D-144 can and cannot tell you
With a birth time known to the second — a hospital record with seconds, or a time already rectified against dated events — the D-144 is a legitimate refinement of the dvādaśāṁśa and can be read as corroboration of it. With an ordinary remembered or rounded birth time it is arithmetic performed on a number you do not have, and no amount of careful reading recovers that. If you are unsure which case you are in, read the D-12, and come back to this page after rectifying the time.
The Dvādaśa-dvādaśāṁśa at a glance
Each figure is specific to this division. Note the last row: this chart is not one of the sixteen, so it carries no Vimśopaka weight in any of the four classical schemes.
| D144 | |
|---|---|
| Divisions per sign | 144 |
| Arc of one division | 0°12'30" |
| Divisional Lagna changes every | about every 50 seconds |
| Built as | the dvādaśāṁśa of the dvādaśāṁśa (12 × 12) |
| Vimśopaka weight | none — outside the ṣoḍaśavarga |
A division outside the sixteen is not thereby wrong, but it is not something Parāśara weighed either. Read it as a refinement of the chart it is built from, and let that parent division carry the judgement.
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.