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01 · SHODASHAVARGA HARMONIC ATLAS (D60 · 60 DIVISIONS PER SIGN)

D60 Shashtiamsa (Ṣaṣṭyāṃśa) — 00° 30' 00" (30' arc)

In the sixteen-fold divisional system (Shodashavarga) of Maharishi Parashara, D60 Shashtiamsa (Ṣaṣṭyāṃśa) partitions each 30° 00' sidereal sign into 60 harmonic segments of 00° 30' 00" (30' arc) to examine Past-Life Root Karma (Purva Punya / Sanchita), Twin Differentiation & Supreme Varga Verdict. Within jyotish_corpus_core_v3, D60 Shashtiamsa is indexed in 23 direct varga passages (13 shlokas) and 92 combined Shodashavarga concordance passages across 12 Sanskrit treatises.

Canonical Definition · D60 Shashtiamsa

D60 Shashtiamsa belongs to Bheda Cycle V (Supreme Causal Plane: D49–D60), correlates with the Twelfth and Fifth Causal Axis (Fifth Harmonic Completion: 5 × 12 = 60), and has Ketu and Surya (Causal Seed of Incarnation) as its natural significator. In the twenty-point Shodashavarga Vimshopaka Bala scale, D60 Shashtiamsa carries an official Parashari weight of 4.0 / 20.0 points.

SHODASHAVARGA HARMONIC PARTITION (D60) 60 Divisions per 30° Rashi (00° 30' 00" (30' arc))
30° 00' RASHI SUBDIVIDED INTO 60 HARMONIC SEGMENTS (00° 30' 00" (30' arc)) 00° 00' Sign Origin 15° 00' Midpoint (Bheda Cycle V (Supreme Causal Plane: D49–D60)) 30° 00' Sign Boundary PARASHARI VIMSHOPAKA BALA WEIGHT (SHODASHAVARGA 20-POINT SCALE) D60 Shashtiamsa 4.0 / 20.0 Correlate: Twelfth and Fifth Causal Axis (Fifth Harmonic Completion: 5 × 12 = 60) | Karaka: Ketu and Surya (Causal Seed of Incarnation)
02 · PARASHARI DEGREE-PARTITION ALGORITHM

Mathematical Construction & Sign-Mapping Rules of D60 Shashtiamsa

The mathematical construction of D60 Shashtiamsa is codified in Brihat Parashara Hora Shastra Chapter 6 Verses 17 to 42 and Chapter 7 Verse 4 and Jataka Parijata Chapter 1 and Sarvartha Chintamani Chapter 1. To compute the harmonic placement of any Graha or Lagna in D60 Shashtiamsa, the astronomer takes the exact sidereal degree within the occupied sign: Sixty equal 0°30' segments (30 arc-minutes each); target sign counts from the occupied sign itself via (floor(deg × 2) mod 12), paired with 60 Saumya/Krura Shashtiamsa deities.

Across the composite Varga weighting schemes of Brihat Parashara Hora Shastra Chapter 7, D60 Shashtiamsa contributes 0.0 points in Shadvarga, 0.0 points in Saptavarga, 5.0 points in Dasavarga, and 4.0 points in the complete sixteen-chart Shodashavarga matrix.

Harmonic Arc / Parameter Natal Sign Category Target Varga Sign Rule Classical Analytical Function
60 Segments of 00° 30' 00" Sign Mapping Rule (All 12 Rashis) Multiply degree in sign by 2, divide by 12, count remainder from occupied sign Cycles five full times (5 × 12 = 60) through the zodiac from the natal sign itself in D60.
Segments 1 to 60 (Odd Signs) Saumya (Benefic) versus Krura (Fierce) Deities Starts with Ghora (1st), Rakshasa (2nd), Deva (3rd), Kubera (4th) through Indurekha (60th) Benefic Deva Shashtiamsas (Deva, Kubera, Amrita, Sudha, Brahmi) strengthen planetary fruit in D60.
Segments 1 to 60 (Even Signs) Reversed 60-Deity Order Starts with Indurekha (1st) and Bhramana (2nd) down to Ghora (60th) Exact inversion of the 60 Shashtiamsa names for even signs per BPHS Chapter 6 Verse 41.
Highest Vimshopaka Weight (4.0 / 20) Supreme Arbitrator of Shodashavarga Carries 20% of Shodashavarga and 25% of Dasavarga (5.0 / 20) Parashara decrees that a planet ruined in D60 cannot deliver auspicious fruit even if exalted in D1.
03 · MULTI-TREATISE SHASTRA CONCORDANCE

Corpus Coverage of D60 Shashtiamsa Across 18 Sanskrit Shastras

The concordance table below presents the treaty-by-treaty distribution of D60 Shashtiamsa and its parent Shodashavarga chapters inside jyotish_corpus_core_v3. Brihat Parashara Hora Shastra establishes the canonical sign-mapping equations and presiding deities for D60 Shashtiamsa, while Hora Ratnam and Sarvartha Chintamani detail how D60 Shashtiamsa modifies natal house lords during Mahadasha fruition.

Sanskrit Treatise Verified Passages Chapter Coverage Analytical Scope
Brihat Parashara Hora Shastra 38 passages 8 ch / 22 v Codifies degree-partition rules, presiding varga deities, and Vimshopaka Bala evaluation for D60 Shashtiamsa across 8 chapters.
Hora Ratnam 18 passages 3 ch / 9 v Codifies degree-partition rules, presiding varga deities, and Vimshopaka Bala evaluation for D60 Shashtiamsa across 3 chapters.
Ashtakavarga Grantha 8 passages 3 ch / 3 v Codifies degree-partition rules, presiding varga deities, and Vimshopaka Bala evaluation for D60 Shashtiamsa across 3 chapters.
Phaladeepika 5 passages 2 ch / 3 v Codifies degree-partition rules, presiding varga deities, and Vimshopaka Bala evaluation for D60 Shashtiamsa across 2 chapters.
Brihat Jataka 5 passages 3 ch / 4 v Codifies degree-partition rules, presiding varga deities, and Vimshopaka Bala evaluation for D60 Shashtiamsa across 3 chapters.
Jaimini Upadesha Sutras 5 passages 1 ch / 5 v Codifies degree-partition rules, presiding varga deities, and Vimshopaka Bala evaluation for D60 Shashtiamsa across 1 chapters.
04 · VERBATIM CORPUS FOLIO & VIMSHOPAKA SYNTHESIS

Archival Public-Domain Folio Excerpt for D60 Shashtiamsa

This archival excerpt for D60 Shashtiamsa is retrieved from the public-domain edition of Jaimini Upadesha Sutras (Chapter 2, Verse 35) in jyotish_corpus_core_v3. In classical chart synthesis, D60 Shashtiamsa is never read in isolation from the root D1 Rashi chart and the D9 Navamsa chart.

CORPUS PROVENANCE: Jaimini Upadesha Sutras | Source ID: archive_JAIMINISUTRAS_201707 | Chapter 2, Verse 35
"NOTES Interpreting of Viveka -Va -4 Va -4 Ka -1-or 441 or reading in the reverse order we get 144 All the Rasis put together at 12 each will come up to 144 Take the Rasi Dasa year and divide that into 12 bhagas, multiply the Mesha Dasa Rasi by 12 Then"

When evaluating past-life root karma (purva punya / sanchita), twin differentiation & supreme varga verdict through D60 Shashtiamsa, the astrologer inspects three converging factors: the dignity of the D60 Lagna lord, the placement of the natural significator (Ketu and Surya (Causal Seed of Incarnation)) inside D60, and the D60 dispositor of the natal house lord corresponding to the twelfth and fifth causal axis (fifth harmonic completion: 5 × 12 = 60).

✦︎ SUTRA BLACK LABEL · INDIVIDUAL EPHEMERIS SYNTHESIS

Compute Exact D60 Shashtiamsa Cusps & Vimshopaka Scores

This encyclopedia entry documents the classical degree-partition rules of D60 Shashtiamsa (00° 30' 00" (30' arc)). Because D60 Shashtiamsa and higher divisional harmonics shift signs within minutes of birth time, visit jyotish.vip to compute birth-second DE441 planetary longitudes, presiding varga deities, and twenty-point Vimshopaka Bala across all 16 Shodashavarga charts.

  • D60 (00° 30' 00" (30' arc))
  • DE441 Ephemeris (0.001°)
  • Vimshopaka Weight 4.0/20
  • Presiding Varga Deities
SUTRA Assay Hallmark 0.001 degrees Enter jyotish.vip Observatory
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