What are the primary astronomical and shastric parameters of Uttara Ashadha Nakshatra (266° 40' to 280° 00') — 4 Padas, Deity, Navamsa D9 & Shastra Concordance?

Sanskrit Name: Uttara Āṣāḍhā (Vaiśvadeva); Sidereal Arc: 266° 40' to 280° 00'; Rashi Span: 26° 40' Dhanu to 10° 00' Makara; Vimshottari Lord: Surya (6 Years); Vedic Deity: Ten Vishvadevas (Universal Principles of Dharma and Truth). Verified against NASA JPL DE441 ephemeris (Chitrapaksha Lahiri Ayanamsha) and the 18-treatise Sanskrit corpus.

01 · SIDEREAL LUNAR MANSION (NAKSHATRA 21 OF 28)

21. Uttara Ashadha (Uttara Āṣāḍhā (Vaiśvadeva)) — 266° 40' to 280° 00'

Q: What is the canonical definition of Uttara Ashadha Nakshatra (266° 40' to 280° 00') — 4 Padas, Deity, Navamsa D9 & Shastra Concordance (NAKSH-01) in sidereal Jyotish?

Uttara Ashadha is governed in the Vimshottari Dasha cycle by Surya (6 Years) and presided over by the Vedic deity Ten Vishvadevas (Universal Principles of Dharma and Truth). Its astronomical junction star (Yoga Tara) is identified with Sigma Sagittarii (Nunki) and Zeta Sagittarii (Ascella), and its inherent power is Apradhrisya Shakti (power of unassailable, permanent victory).

In classical Sanskrit positional astronomy, Uttara Ashadha (Uttara Āṣāḍhā (Vaiśvadeva)) is the 21-numbered lunar mansion spanning 26° 40' Dhanu to 10° 00' Makara (266° 40' to 280° 00' of the sidereal ecliptic). Within the vectorized corpus (jyotish_corpus_core_v3), Uttara Ashadha is directly indexed across 101 verified passages and 45 numbered shlokas in 8 Sanskrit treatises.

Canonical Definition · Uttara Ashadha (266° 40' to 280° 00')

Uttara Ashadha is governed in the Vimshottari Dasha cycle by Surya (6 Years) and presided over by the Vedic deity Ten Vishvadevas (Universal Principles of Dharma and Truth). Its astronomical junction star (Yoga Tara) is identified with Sigma Sagittarii (Nunki) and Zeta Sagittarii (Ascella), and its inherent power is Apradhrisya Shakti (power of unassailable, permanent victory).

13° 20' SIDEREAL LUNAR MANSION & 4-PADA NAVAMSA (D9) PROJECTION Nakshatra 21 (Uttara Ashadha)

SIDEREAL ARC: 266° 40' to 280° 00' | RASHI: DHANU AND MAKARA | DASHA LORD: SURYA (6 YEARS) 0° Mesha 180° Chitra (Spica) 360° Revati 4 EQUAL NAVAMSA PADAS (3° 20' = 200 ARC-MINUTES EACH) Pada 1 · "Bhe" Dhanu (Sagittarius D9) Lord: Guru Pada 2 · "Bho" Makara (Capricorn D9) Lord: Shani Pada 3 · "Ja" Kumbha (Aquarius D9) Lord: Shani Pada 4 · "Ji" Meena (Pisces D9) Lord: Guru Deity: Ten Vishvadevas (Universal Principles of Dharma and Truth) | Gana: Manushya (Human)

02 · FOUR PADAS & NAVAMSA (D9) HARMONIC MAPPING

The Four 3° 20' Padas of Uttara Ashadha & Ninth-Harmonic Dispositors

The lunar mansion Uttara Ashadha divides into four equal quarters (Padas) of 3° 20' (200 arc-minutes each) that project directly into the Navamsa (D9) harmonic chart. In Uttara Ashadha, this four-fold partition links the sidereal longitude in Dhanu and Makara to four consecutive Navamsa signs and phonetic seed syllables (Aksharas).

According to Brihat Samhita Chapter 98 Verse 12 and Chapter 101 Verse 21 and Brihat Parashara Hora Shastra Chapter 46 Verses 92 to 95, Uttara Ashadha carries a dhruva and sthira (fixed and permanent) temperament and a manushya (human) classification. Within the ecliptic structure of Uttara Ashadha, Padas 1 and 2 are consecutive Vargottama quarters; Padas 1 and 4 are Pushkara Navamsas.

Pada & Degree Span	Navamsa (`D9`) Sign	`D9` Ruler & Syllable	Classical Pada Delineation
`Pada 1 (26°40' – 30°00' Dhanu)`	`Dhanu (Sagittarius D9)`	Guru (`"Bhe"`)	Supreme Vargottama and Pushkara Sagittarius quarter conferring incorruptible statesmanship in Uttara Ashadha.
`Pada 2 (00°00' – 03°20' Makara)`	`Makara (Capricorn D9)`	Shani (`"Bho"`)	Vargottama Capricorn quarter translating Uttara Ashadha dharmic vision into institutional architecture.
`Pada 3 (03°20' – 06°40' Makara)`	`Kumbha (Aquarius D9)`	Shani (`"Ja"`)	Civic quarter overlapping the opening of intercalary Abhijit and upholding collective ethical charters.
`Pada 4 (06°40' – 10°00' Makara)`	`Meena (Pisces D9)`	Guru (`"Ji"`)	Pushkara Navamsa quarter uniting solar authority with Jupiterian grace at the zenith of Uttara Ashadha.

03 · MULTI-TREATISE SHASTRA CONCORDANCE

Citations for Uttara Ashadha Across 18 Classical Sanskrit Shastras

The concordance table below details how Uttara Ashadha is distributed across the eighteen classical treatises of jyotish_corpus_core_v3. Varahamihira in Brihat Samhita and Brihat Jataka defines the stellar coordinates, seasonal transits, and natal Moon traits of Uttara Ashadha, while Muhurta Chintamani and Kalaprakashika codify electional Panchanga rules for Uttara Ashadha.

Sanskrit Treatise	Verified Passages	Chapter Coverage	Analytical Scope
Muhurta Chintamani	`45 passages`	`9 ch / 10 v`	Records lunar transit rules, Tara Bala compatibility, and janma nakshatra results for Uttara Ashadha across 9 chapters.
Hora Ratnam	`20 passages`	`3 ch / 8 v`	Records lunar transit rules, Tara Bala compatibility, and janma nakshatra results for Uttara Ashadha across 3 chapters.
Brihat Samhita	`14 passages`	`12 ch / 12 v`	Records lunar transit rules, Tara Bala compatibility, and janma nakshatra results for Uttara Ashadha across 12 chapters.
Prashna Marga	`8 passages`	`4 ch / 6 v`	Records lunar transit rules, Tara Bala compatibility, and janma nakshatra results for Uttara Ashadha across 4 chapters.
Ashtakavarga Grantha	`6 passages`	`2 ch / 3 v`	Records lunar transit rules, Tara Bala compatibility, and janma nakshatra results for Uttara Ashadha across 2 chapters.
Brihat Parashara Hora Shastra	`5 passages`	`2 ch / 4 v`	Records lunar transit rules, Tara Bala compatibility, and janma nakshatra results for Uttara Ashadha across 2 chapters.

04 · VERBATIM CORPUS FOLIO & VIMSHOTTARI SYNCHRONY

Archival Public-Domain Folio Excerpt for Uttara Ashadha

This archival passage for Uttara Ashadha comes from the public-domain edition of Brihat Parashara Hora Shastra (Chapter 46, Verse 21) in jyotish_corpus_core_v3. When the natal Moon or Lagna occupies Uttara Ashadha, the remaining arc of Uttara Ashadha determines the opening balance of the Surya Mahadasha (6 Years).

CORPUS PROVENANCE: Brihat Parashara Hora Shastra | Source ID: archive_brihat-parashara-hora-sastra | Chapter 46, Verse 21
"ahu and ukr are 6, 15, 8, 17, 10, 19, 12 and 21 in that order Thus in this Dasha system only 8 Grahas play the role of Dasha Lords, Ketu having been denied this privilege 21-22 The Dashas of the various Grahas have been specified above In the case of malefic"

In Ashtakoota synastry and daily Gochara transit analysis, Uttara Ashadha is the reference anchor for computing the nine-fold Tara Bala cycle (Janma, Sampat, Vipat, Kshema, Pratyak, Sadhana, Naidhana, Mitra, and Parama Mitra) and checking Nadi and Gana compatibility (Manushya (Human)).

✦︎ SUTRA BLACK LABEL · INDIVIDUAL EPHEMERIS SYNTHESIS

Calculate Exact Uttara Ashadha Pada & Dasha Balances for Birth Coordinates

This encyclopedia entry documents the astronomical and shastric parameters of Uttara Ashadha (266° 40' to 280° 00'). To compute exact birth-second planetary placements in Uttara Ashadha, five-tier Vimshottari Dasha dates, and Navamsa (D9) dignities under DE441 Lahiri precession, visit jyotish.vip.

Uttara Ashadha 4-Pada Precision
DE441 Ephemeris (0.001°)
Surya Dasha Balance
Verbatim Shloka Citations

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Sanskrit Name	`Uttara Āṣāḍhā (Vaiśvadeva)`
Sidereal Arc	`266° 40' to 280° 00'`
Rashi Span	26° 40' Dhanu to 10° 00' Makara
Vimshottari Lord	Surya (6 Years)
Vedic Deity	`Ten Vishvadevas (Universal Principles of Dharma and Truth)`
Yoga Tara Star	`Sigma Sagittarii (Nunki) and Zeta Sagittarii (Ascella)`
Traditional Symbol	`Elephant Tusk or Small Cot`
Gana & Temperament	`Manushya (Human) · Dhruva and Sthira (Fixed and Permanent)`
Guna & Tattva	`Sattva · Vayu (Air)`
Corpus Passages	`101 (45 v)`
Observatory	jyotish.vip