HARMONIC ATLAS (D12 · 12 DIVISIONS PER SIGN)D12 Dwadasamsa (Suryamsa) (Dvādaśāṃśa (Sūryāṃśa)) — 02° 30' 00" (150' arc)
In the sixteen-fold divisional system (Shodashavarga) of Maharishi Parashara, D12 Dwadasamsa (Suryamsa) (Dvādaśāṃśa (Sūryāṃśa)) partitions each 30° 00' sidereal sign into 12 harmonic segments of 02° 30' 00" (150' arc) to examine Parental Lineage (Matru-Pitru), Ancestral Heritage & Hereditary Continuity. Within jyotish_corpus_core_v3, D12 Dwadasamsa (Suryamsa) is indexed in 154 direct varga passages (86 shlokas) and 217 combined Shodashavarga concordance passages across 15 Sanskrit treatises.
D12 Dwadasamsa (Suryamsa)
D12 Dwadasamsa (Suryamsa) belongs to Bheda Cycle I (Physical & Root Plane: D1–D12), correlates with the Fourth House (Mother) and Ninth/Tenth House (Father), and has Surya (Father) and Chandra (Mother) as its natural significator. In the twenty-point Shodashavarga Vimshopaka Bala scale, D12 Dwadasamsa (Suryamsa) carries an official Parashari weight of 0.5 / 20.0 points.
PARASHARI DEGREE-PARTITION ALGORITHMMathematical Construction & Sign-Mapping Rules of D12 Dwadasamsa (Suryamsa)
The mathematical construction of D12 Dwadasamsa (Suryamsa) is codified in Brihat Parashara Hora Shastra Chapter 6 Verse 9 and Brihat Jataka Chapter 1 Verse 6 and Saravali Chapter 3 Verse 11 and Phaladeepika Chapter 3 Verse 7. To compute the harmonic placement of any Graha or Lagna in D12 Dwadasamsa (Suryamsa), the astronomer takes the exact sidereal degree within the occupied sign: Twelve equal 2°30' segments (150 arc-minutes each); for every Rashi, counting always begins from the occupied sign itself and proceeds through all 12 signs.
Across the composite Varga weighting schemes of Brihat Parashara Hora Shastra Chapter 7, D12 Dwadasamsa (Suryamsa) contributes 2.0 points in Shadvarga, 2.0 points in Saptavarga, 1.5 points in Dasavarga, and 0.5 points in the complete sixteen-chart Shodashavarga matrix.
| Harmonic Arc / Parameter | Natal Sign Category | Target Varga Sign Rule | Classical Analytical Function |
|---|---|---|---|
Segment 1 (00° 00' – 02° 30') |
All 12 Sidereal Rashis | 1st Sign (Occupied Natal Sign — Vargottama |
Presided over by Ganesha; anchors direct ancestral lineage continuity in D12. |
Segments 2 to 4 (02° 30' – 10° 00') |
All 12 Sidereal Rashis | 2nd, 3rd, and 4th Signs from Occupied Rashi |
Presided over by Ashwini Kumaras, Yama, and Sarpa across the cyclic sequence in D12. |
Segments 5 to 8 (10° 00' – 20° 00') |
All 12 Sidereal Rashis | 5th, 6th, 7th, and 8th Signs from Occupied Rashi |
Cycles through Ganesha, Ashwini Kumaras, Yama, and Sarpa for second-trine heritage in D12. |
Segments 9 to 12 (20° 00' – 30° 00') |
All 12 Sidereal Rashis | 9th, 10th, 11th, and 12th Signs from Occupied Rashi |
Completes the third four-deity cycle governing paternal and maternal longevity in D12. |
MULTI-TREATISE SHASTRA CONCORDANCECorpus Coverage of D12 Dwadasamsa (Suryamsa) Across 18 Sanskrit Shastras
The concordance table below presents the treaty-by-treaty distribution of D12 Dwadasamsa (Suryamsa) and its parent Shodashavarga chapters inside jyotish_corpus_core_v3. Brihat Parashara Hora Shastra establishes the canonical sign-mapping equations and presiding deities for D12 Dwadasamsa (Suryamsa), while Hora Ratnam and Sarvartha Chintamani detail how D12 Dwadasamsa (Suryamsa) modifies natal house lords during Mahadasha fruition.
| Sanskrit Treatise | Verified Passages | Chapter Coverage | Analytical Scope |
|---|---|---|---|
| Hora Ratnam | 60 passages |
5 ch / 34 v |
Codifies degree-partition rules, presiding varga deities, and Vimshopaka Bala evaluation for D12 Dwadasamsa (Suryamsa) across 5 chapters. |
| Brihat Jataka | 37 passages |
10 ch / 16 v |
Codifies degree-partition rules, presiding varga deities, and Vimshopaka Bala evaluation for D12 Dwadasamsa (Suryamsa) across 10 chapters. |
| Brihat Parashara Hora Shastra | 35 passages |
10 ch / 21 v |
Codifies degree-partition rules, presiding varga deities, and Vimshopaka Bala evaluation for D12 Dwadasamsa (Suryamsa) across 10 chapters. |
| Ashtakavarga Grantha | 18 passages |
5 ch / 7 v |
Codifies degree-partition rules, presiding varga deities, and Vimshopaka Bala evaluation for D12 Dwadasamsa (Suryamsa) across 5 chapters. |
| Prashna Marga | 16 passages |
4 ch / 8 v |
Codifies degree-partition rules, presiding varga deities, and Vimshopaka Bala evaluation for D12 Dwadasamsa (Suryamsa) across 4 chapters. |
| Saravali | 15 passages |
6 ch / 15 v |
Codifies degree-partition rules, presiding varga deities, and Vimshopaka Bala evaluation for D12 Dwadasamsa (Suryamsa) across 6 chapters. |
VERBATIM CORPUS FOLIO & VIMSHOPAKA SYNTHESISArchival Public-Domain Folio Excerpt for D12 Dwadasamsa (Suryamsa)
This archival excerpt for D12 Dwadasamsa (Suryamsa) is retrieved from the public-domain edition of Phaladeepika (Chapter 3, Verse 1) in jyotish_corpus_core_v3. In classical chart synthesis, D12 Dwadasamsa (Suryamsa) is never read in isolation from the root D1 Rashi chart and the D9 Navamsa chart.
CORPUSPROVENANCE: Phaladeepika | SourceID: archive_dli.ernet.507316 | Chapter 3, Verse 1 "AdhIIFsADHYAYAIII Sloka 1 (Kshetra or an arc of 30'), Drek- kana, Decanate or an arc of 10 ), i (Navamsa or an arc of 31 '), i (Dasamsa or an arc of 3 or js portion of a sign), r (Hora or of a sign, i e ,"
When evaluating parental lineage (matru-pitru), ancestral heritage & hereditary continuity through D12 Dwadasamsa (Suryamsa), the astrologer inspects three converging factors: the dignity of the D12 Lagna lord, the placement of the natural significator (Surya (Father) and Chandra (Mother)) inside D12, and the D12 dispositor of the natal house lord corresponding to the fourth house (mother) and ninth/tenth house (father).
SUTRA BLACK LABEL · INDIVIDUAL EPHEMERIS SYNTHESISCompute Exact D12 Dwadasamsa (Suryamsa) Cusps & Vimshopaka Scores
This encyclopedia entry documents the classical degree-partition rules of D12 Dwadasamsa (Suryamsa) (02° 30' 00" (150' arc)). Because D12 Dwadasamsa (Suryamsa) and higher divisional harmonics shift signs within minutes of birth time, visit jyotish.vip to compute birth-second DE441
D12(02° 30' 00" (150' arc))DE441Ephemeris (0.001°)Vimshopaka Weight 0.5/20Presiding Varga Deities
