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Jyotisha Chart (Sidereal) · Nakshatra 20 of 27

Purva Ashadha, the early victory of the waters

Purva Ashadha, "the former unconquered", is the twentieth nakshatra: it lies in the stars of the Archer, wholly inside Dhanu. The waters, Apas, are its deity in every list; its modern emblem is a winnowing fan, and Shukra is its Vimshottari lord.

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The ring of the 27 nakshatras with Purva Ashadha, number 20, marked from 13°20′ Dhanu to 26°40′ Dhanu, its four padas ticked inside the arc; beside it the name in IAST, Pūrva Āṣāḍhā, and its lord, Shukra. 0° Mesha 20 of 27 Purva Ashadha Pūrva Āṣāḍhā 13°20′ Dhanu to 26°40′ Dhanu four padas of 3°20′ lord Shukra
Purva Ashadha on the ring of the 27 nakshatras: Ashwini starts at 0° Mesha at the top and the count runs clockwise; the longer ticks are the twelve rashis. Our drawing.

Facts

Position
Nakshatra 20 of 27, counted from Ashwini at 0° Mesha
Name
Purva Ashadha; IAST Pūrva Āṣāḍhā; पूर्वाषाढा
The name means
the former unconquered
Span, sidereal
13°20′ Dhanu to 26°40′ Dhanu
In the tropical zodiac, 2026
about 7°33′ Capricorn to 20°53′ Capricorn, by the Lahiri measure
Vimshottari lord
Shukra (Venus), 20 years
Padas and their navamsas
1 Simha · 2 Kanya · 3 Tula · 4 Vrishchika
Stars of the name
δ and ε Sagittarii

Meaning

The two Ashadhas, "the unconquered", are another pair, the former and the latter; the first lies in delta and epsilon Sagittarii, in the Archer's bow.

Its deity is the waters, and modern readings join them to the name: invigoration and persuasion, confidence, the power to convince and to purify, and the first victory before the lasting one. Our chart's text compares its energy to flowing water and says that openness keeps conviction from overwhelming others.

Shukra, Venus, is its lord in the Vimshottari order, with twenty years. It lies wholly within Dhanu, 13°20′ to 26°40′.

Deity and emblem

The waters, Apas, are the deity of the first Ashadhas in the Taittiriya Samhita and today.

The modern emblem is a winnowing fan, the basket that separates grain from chaff. The medieval authorities differ here, giving a bed or an elephant's tusk, so the fan is the modern tradition's image.

In the chart

Purva Ashadha runs from 13°20′ Dhanu to 26°40′ Dhanu of the sidereal zodiac, the twentieth of 27 equal parts of 13°20′. It lies wholly within Dhanu (Sagittarius). Its four padas of 3°20′ fall in the navamsas of Simha, Kanya, Tula and Vrishchika, so a graha in its first pada stands in Simha in the D9.

Its Vimshottari lord is Shukra, whose period is twenty years. When the Moon stands here at birth, the reckoning opens in Shukra's period and counts only the part still to run, in proportion to the part of Purva Ashadha the Moon has yet to cross. In 2026 the same stretch of sky is about 7°33′ Capricorn to 20°53′ Capricorn in the tropical zodiac, by the Lahiri measure; another ayanamsa moves the edges, and a Moon or lagna within a few minutes of arc of an edge can fall in the neighbouring nakshatra in another tool.

Correspondences

Each item with how it stands: “sourced” is in the work cited, “our construction” is EsoTerrier’s own, and “disputed” means the sources disagree.

Deity, as used today
Apas, the waters sourced
Deity in the Taittiriya Samhita (iv.4.10)
the waters (the first Ashadhas) sourced
Symbol, the modern tradition's
winnowing fan; no dated source found disputed
Figure in the medieval lists (Burgess, 1860)
a bed or an elephant's tusk (the authorities differ) sourced
Themes in modern readings, our summary
invigoration and persuasion: confidence, the power to convince, the early victory our construction

How the schools read it

The Vedic lists (Taittiriya Samhita iv.4.10, Keith 1914)
the waters (the first Ashadhas), as today; the Taittiriya list begins with Krittika.
The medieval lists (Burgess and Whitney, 1860)
The figure of the asterism: a bed or an elephant's tusk (the authorities differ), after the Ratnamala and the Muhurta Chintamani.
Modern Jyotisha
Invigoration and persuasion: confidence, the power to convince, the early victory; its symbol: winnowing fan.
The 28-nakshatra scheme
Abhijit, in the stars of Lyra, stands between Uttara Ashadha and Shravana in the older lists; the equal division into 27 leaves it out.
Western sidereal (Fagan-Bradley)
The same 27 divisions, about 0°53′ further on than Lahiri's; Western siderealists rarely use them.
EsoTerrier
Our chart's text for a Moon here: "Purva Ashadha is ruled by Shukra, and its name speaks of the early, unconquered one. Its energy is confident, persuasive and invigorating like flowing water, and tempering conviction with openness helps it inspire rather than overwhelm." Our words.

Claims about it

  • Purva Ashadha's deity and symbol are one fixed set handed down from the Vedas.

    disputed

    What the record shows: The deity, Apas, is the same in the Taittiriya Samhita (iv.4.10) and today, but five other nakshatras have different deities in different Vedic lists. The symbol, winnowing fan, is the modern tradition's and has no dated source we found; the medieval lists give a bed or an elephant's tusk (the authorities differ).

  • The nakshatra is a constellation, 13°20′ wide.

    false

    What the record shows: The nakshatras began as star groups of unequal size, 28 in the Atharvaveda with Abhijit. The equal division into 27 parts of 13°20′ is a later convention; the name points at stars, the division is arithmetic.

Elsewhere on EsoTerrier

Sources

Primary texts (3)
  1. Positional Astronomy Centre, India Meteorological Department, Rashtriya Panchang 1948 Saka (2026-27), online edition: ayanamsa by month, daily nirayana longitudes of the Sun and Moon, explanation page. Government of India, Kolkata, 2026. Official values cited; tables not reproduced. packolkata.imd.gov.in/panchang/index.php/en
  2. Parashara (attributed); tr. R. Santhanam, Brihat Parasara Hora Sastra of Maharshi Parasara, English translation with commentary. Ranjan Publications, New Delhi, 1984. In copyright; facts and chapter numbers only.
  3. Arthur Berriedale Keith (translator), The Veda of the Black Yajus School, entitled Taittiriya Sanhita, part 2 (Kandas IV to VII). Harvard Oriental Series vol. 19, Harvard University Press, 1914. Public domain; the deity list of iv.4.10. archive.org/details/vedaofblackyajus02keit
Studies and other sources (4)
  1. Astrodienst AG (Dieter Koch, Alois Treindl), Swiss Ephemeris programming interface and general documentation (sections 2.2 lunar nodes and apogees, 2.8 sidereal and ayanamsha, 6.3 to 6.4 Vertex and polar houses, Appendix E published ayanamsha values). Astrodienst, Zurich, 2022. Read as documentation only; facts. astro.com/swisseph/swisseph.htm
  2. Wikipedia, Nakshatra. Read 2026-10-12. en.wikipedia.org/wiki/Nakshatra
  3. Wikipedia, Dasha (astrology). Read 2026-10-12. en.wikipedia.org/wiki/Dasha_(astrology)
  4. Ebenezer Burgess (with William Dwight Whitney), Translation of the Surya-Siddhanta, a Text-Book of Hindu Astronomy; with Notes, and an Appendix. Journal of the American Oriental Society 6, 1860. Public domain; the notes to chapter VIII, verse 9. archive.org/details/jstor-592174
Our own research (2)
  1. EsoTerrier (main research agent), Natal and sidereal wheels: research for the rebuild (README, report-main.md, notes/). 2026; research/2026-10-11-natal-sidereal/. Our dated research: tools, names and transliteration, dignities, the claim audit.
  2. EsoTerrier, EsoTerrier chart engine: services/chart/ephemeris.py, calculation.py, jyotish.py, texts.py. 2026; python/esoterrier/esoterrier/services/chart/. Our engine; the readings in it are our own words.

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By EsoTerrier. Written with AI assistance from our research and checked against its sources; last revised 20 October 2026. How we write these pages.

First published ; last revised . Corrections: support@esoterrier.com.