PLANETARY ASTRONOMY & GRAHA TAXONOMY☉︎ Surya (Sun) in Sidereal Jyotish
In the nine-planet system of Sanskrit positional astronomy, Surya (Sūrya (Aditya), Sun) is a cruel (krura) sattvic luminary governing vital essence (Atman), paternal lineage, sovereign authority, osteological structure, and first-house vitality. Within the vectorized reference corpus (jyotish_corpus_core_v3), Surya appears in 5,783 verified passages and 3,148 numbered shlokas across 18 Sanskrit treatises.
Surya (Sun) rules Simha (Leo, 120° to 150°), reaches deep exaltation at Mesha 10°00' (Aries), and enters deep debilitation at Tula 10°00' (Libra). In the 120-year Vimshottari Dasha cycle, Surya governs a major planetary period of 6 Years across the lunar mansions Krittika, Uttara Phalguni, Uttara Ashadha.
EPHEMERIS MECHANICS & PRECESSION DIFFERENTIALSidereal Longitude, Synodic Velocity & Dignity Thresholds of Surya
High-precision integration for Surya under DE441
According to Brihat Parashara Hora Shastra Chapter 3 Verses 11 to 23 and Brihat Jataka Chapter 2 Verses 1 to 8, Surya gains full directional strength in the Tenth House (Karma Bhava) and requires at least 6.50 Rupas (390 Virupas) in six-fold Shadbala. For solar proximity and heliacal visibility of Surya, classical mathematical astronomy applies a strict standard: Surya defines the heliacal combustion (Moudhya) arc from 12° to 17° for the other Grahas.
| Parameter | Specification | Classical Authority |
|---|---|---|
| Swakshetra Domicile | Simha (Leo, 120° to 150°) |
Brihat Parashara Hora Shastra Chapter 3 Verses 11 to 23 defines the primary own-sign domicile and planetary rulership of Surya (Sun) in the sidereal zodiac. |
| Moolatrikona Arc | Simha 0° to 20° |
Brihat Jataka Chapter 2 Verses 1 to 8 specifies the exact root-trine degree zone assigned to Surya in classical horoscopic evaluation. |
| Exaltation & Fall | Mesha 10°00' (Aries) / Tula 10°00' (Libra) |
Phaladeepika Chapter 2 Verses 1 to 8 establishes the longitudinal degree of peak exaltation and deep debilitation for Surya. |
| Natural Friends | Chandra, Mangala, Guru |
The classical Panchadha Maitri five-fold compound relationship matrix scores planetary allies of Surya by sign placement. |
| Neutral & Adversaries | Neutral: Budha | Enemies: Shukra, Shani, Rahu, Ketu |
Saravali Chapter 4 Verses 1 to 12 details permanent natural friendship, neutrality, and enmity modifiers for Surya in natal charts. |
MULTI-TREATISE SHASTRA CONCORDANCECorpus Distribution of Surya Across 18 Sanskrit Shastras
The concordance table below records the exact passage and shloka distribution for Surya (Sun) extracted from jyotish_corpus_core_v3. Maharishi Parashara emphasizes divisional varga dignity and Vimshottari timing for Surya, while Varahamihira and Kalyana Varma detail specific sign-aspect modifications and Drekkana placements for Surya.
| Sanskrit Treatise | Verified Passages | Chapter Coverage | Analytical Scope |
|---|---|---|---|
| Surya Siddhanta | 714 passages |
14 ch / 222 v |
Codifies sidereal sign dignity, house placement results, and aspect valuation rules for Surya (Sun) across 14 classical chapters. |
| Brihat Jataka | 704 passages |
28 ch / 445 v |
Codifies sidereal sign dignity, house placement results, and aspect valuation rules for Surya (Sun) across 28 classical chapters. |
| Brihat Parashara Hora Shastra | 562 passages |
77 ch / 401 v |
Codifies sidereal sign dignity, house placement results, and aspect valuation rules for Surya (Sun) across 77 classical chapters. |
| Brihat Samhita | 508 passages |
73 ch / 418 v |
Codifies sidereal sign dignity, house placement results, and aspect valuation rules for Surya (Sun) across 73 classical chapters. |
| Saravali | 507 passages |
48 ch / 427 v |
Codifies sidereal sign dignity, house placement results, and aspect valuation rules for Surya (Sun) across 48 classical chapters. |
| Hora Ratnam | 467 passages |
5 ch / 252 v |
Codifies sidereal sign dignity, house placement results, and aspect valuation rules for Surya (Sun) across 5 classical chapters. |
VERBATIM CORPUS FOLIO & DIVISIONAL HARMONICSArchival Public-Domain Folio Excerpt & Varga Synthesis for Surya
This archival excerpt for Surya is retrieved from the public-domain edition of Brihat Parashara Hora Shastra (Chapter 5, Verse 1) in jyotish_corpus_core_v3. In divisional horoscopy, the natal Rashi (D1D9D10
CORPUSPROVENANCE: Brihat Parashara Hora Shastra | SourceID: archive_brihat-parashara-hora-sastra | Chapter 5, Verse 1 "(cusp) The resultant product in R is, degrees will represent the months, days , that elapsed between Nishek and birth At birth, if Lagn Lord is in the invisible half (i e from Lagn cusp to descendental cusp), add the degrees , Candr moved in the particular R i, occupied by her, to the"
When Surya occupies identical sidereal signs in both the natal Rashi (D1D9
SUTRA BLACK LABEL · INDIVIDUAL EPHEMERIS SYNTHESISCompute Exact Surya Shadbala & Varga Dignities for Birth Coordinates
This encyclopedia entry establishes the astronomical and shastric baseline for Surya (Sun). To calculate birth-second sidereal longitude, six-fold Shadbala Virupas, Ashtakavarga bindus, and verbatim shloka citations for Surya across all 16 Shodashavarga charts, visit jyotish.vip.
Surya Shadbala RupasDE441Ephemeris (0.001°)Surya Shloka CitationsVimshottari Dasha Timing
