Saptaviṃśāṃśa (D-27)

Saptaviṃśāṃśa (सप्तविंशांश, also written Saptavimshamsha, Bhāṃśa, or Nakshatrāṃśa) — the D-27 chart — is the twelfth of the sixteen classical Ṣoḍaśa-vargas described in Brihat Parāśara Horā Śāstra. The Saptaviṃśāṃśa reads the bala register — strengths and weaknesses, physiological vitality, and the general endurance-register of the native. The classical alternate name Bhāṃśa (from bha — nakshatra) reflects the 27-fold division's alignment with the 27 nakshatras; the alternate name Nakshatrāṃśa is used in some regional sources for the same reason.

Classical grounding

Brihat Parāśara Horā Śāstra's Ṣoḍaśa-varga-adhyāya names the Saptaviṃśāṃśa's computational rule and its strength-register signification; Phaladeepikā and regional classical compendia supply extended treatment. Classical sources cross-reference the D-27 with the classical Aṣṭakavarga strength-scoring system and with general graha-bala calculations for complete vitality- register assessment.

Computational scheme

BPHS's division rule for D-27: each 30° rāśi is divided into twenty-seven 1°6'40" parts (30° ÷ 27 = 1.1111°, or 1°6'40" in arcminute notation), with rāśi-ownership assigned by the rāśi's element. For fire rāśis (Meṣa, Siṃha, Dhanu), the saptaviṃśāṃśa- count begins from Meṣa and proceeds sequentially through twenty- seven rāśis (wrapping more than twice through the zodiac). For earth rāśis (Vṛṣabha, Kanyā, Makara), the count begins from Karka. For air rāśis (Mithuna, Tulā, Kumbha), the count begins from Tulā. For water rāśis (Karka, Vṛścika, Meena), the count begins from Makara. The classical convention uses the four kendra-positions (Meṣa-Karka-Tulā-Makara, the four movable rāśis) as starting-points for the four element-classes respectively. BPHS is explicit on this convention.

Classical significations

The Saptaviṃśāṃśa-chart classically reads bala — the strength- register of the native, physiological vitality, constitutional endurance, and the general dimension of life-force-capacity. Classical reading: the Lagna of the D-27 chart reads the native's constitutional-strength register; graha placements in the D-27 supplement the classical śaḍbala (six-fold strength) calculations for each graha. Lagna-lord strength in the D-27 is classically read as a significant vitality-register indicator. The D-27 is also classically read for the native's resilience-register — capacity to endure reversals and maintain constitutional balance.

Classical interpretation register

The classical interpretation register of the Saptaviṃśāṃśa is bala-specific — the chart reads a distinct dimension that supplements the classical śaḍbala computations. Classical commentators note that the D-27 reading is specifically valued for assessing the native's physiological-constitutional register and the overall strength-dimension of the chart. The 27-fold division's classical alignment with nakshatra-division (each nakshatra is 13°20' across the 360° zodiac, and 27 × 1°6'40" per rāśi = 30° per rāśi matches the zodiac's 27-nakshatra × 13°20' = 360° structure proportionally within each rāśi) supplies the alternate Nakshatrāṃśa naming. The D-27 is included in graded-varga schemes from Ṣoḍaśa- varga. Vargottama in the D-27 is classically a significant strength-register. As with all vargas, the classical tradition reports the register the chart reads; the reader's physiological circumstances are not determined by the chart in isolation.

Related Concepts

• Rāśi (D-1) — primary chart
• Tanu-bhāva (1st) — 1st bhāva — vitality register
• Ripu-bhāva (6th) — 6th bhāva — health register
• Āyus-bhāva (8th) — 8th bhāva — longevity register
• Ṣaṣṭiāṃśa (D-60) — paired fine-strength reading