Saptāṃśa (D-7)

Saptāṃśa (सप्तांश, also written Saptamsha) — the D-7 chart — is the fifth of the sixteen classical Ṣoḍaśa-vargas described in Brihat Parāśara Horā Śāstra. The Saptāṃśa reads the putra-pautra (progeny, children, grandchildren, lineage continuation) register of the native, deepening the reading of the 5th-bhāva of the Rāśi- chart. The name saptāṃśa is Sanskrit for "seventh part" or "one-of-seven division." The D-7 is the classical primary varga for progeny-register assessment alongside the Rāśi 5th-bhāva reading and Guru as classical putra-kāraka.

Classical grounding

Brihat Parāśara Horā Śāstra's Ṣoḍaśa-varga-adhyāya names the Saptāṃśa's computational rule and its progeny-register signification; Bṛhat Jātaka of Varāhamihira chapter 8 names the same scheme; Phaladeepikā and Saravali extend the treatment. Classical sources emphasise that the D-7 supplements rather than replaces the Rāśi 5th-bhāva reading — the two are cross-referenced in classical progeny-register assessment, alongside Guru's placement and condition in the Rāśi.

Computational scheme

BPHS's division rule for D-7: each 30° rāśi is divided into seven 4°17'8.57" parts (30° ÷ 7 = 4.2857° per part), with rāśi-ownership assigned by the rāśi's odd-even classification. For odd rāśis (Meṣa, Mithuna, Siṃha, Tulā, Dhanu, Kumbha), the saptāṃśa-count begins from the same rāśi and proceeds sequentially through the next seven rāśis: Meṣa's seven saptāṃśas are Meṣa, Vṛṣabha, Mithuna, Karka, Siṃha, Kanyā, Tulā. For even rāśis (Vṛṣabha, Karka, Kanyā, Vṛścika, Makara, Meena), the count begins from the 7th rāśi from the same and proceeds sequentially: Vṛṣabha's seven saptāṃśas are Vṛścika, Dhanu, Makara, Kumbha, Meena, Meṣa, Vṛṣabha. The 7th saptāṃśa of any even rāśi is therefore the rāśi itself — the vargottama position for even rāśis in D-7 falls at 22°51'25.7" onward.

Classical significations

The Saptāṃśa-chart classically reads putra-pautra — progeny, children and grandchildren, the native's capacity for lineage continuation, the welfare of children, and the parent-child relationship-register. Classical reading: the 5th-bhāva of the D-7 chart reads progeny specifically; the Lagna of the D-7 reads the native's parental-register orientation; the 5th-lord of the Rāśi placed strongly in the D-7 classically strengthens the overall progeny-register reading. Malefic placement in the D-7's 5th, or affliction of the 5th-lord within the D-7, modifies the progeny-register assessment. Guru as putra-kāraka is cross- referenced.

Classical interpretation register

The classical interpretation register of the Saptāṃśa is putra- specific — the chart specialises the 5th-bhāva reading of the Rāśi without replacing it. Classical commentators note that the D-7 reading, the 5th-bhāva of the Rāśi, the 5th-lord, and Guru's position together form the classical putra-catuṣṭaya (four-factor progeny assessment). The vargottama condition in the D-7 is classically a significant strength-register; it occurs only in specific degree-ranges that depend on the rāśi's parity. The D-7 is included in classical graded-strength schemes from Sapta-varga onward. Classical reading is careful to name the D-7 as a diagnostic register: the tradition reports what the chart indicates; specific timing questions about progeny are classically addressed through Daśā-cross-referencing rather than through the D-7 in isolation.

Related Concepts

• Rāśi (D-1) — primary chart
• Putra-bhāva (5th) — 5th bhāva — progeny register
• Bṛhaspati — classical putra-kāraka