The 6th nakshatra, ruled by Rahu, 4 padas in Gemini. Four padas of 3°20′, each with its navamsa sign.
Ardra runs from 6°40′ Gemini – 20°00′ Gemini — 13°20′ of the ecliptic, measured sidereally from 0° Aries with the Lahiri ayanamsa. It is 4 padas in Gemini. It follows Mrigashira and is followed by Punarvasu.
Each nakshatra divides into four padas of 3°20′, and each pada maps to a navamsa sign — the D9 chart is built from exactly this. The pada is usually the first thing an imprecise birth time puts in doubt — the Moon crosses one in about six hours, so how much slack you have depends on how near a boundary the Moon actually was.
| Pada | From | To | Rashi | Navamsa |
|---|---|---|---|---|
| 1 | 6°40′ Gemini | 10°00′ Gemini | Gemini | Sagittarius |
| 2 | 10°00′ Gemini | 13°20′ Gemini | Gemini | Capricorn |
| 3 | 13°20′ Gemini | 16°40′ Gemini | Gemini | Aquarius |
| 4 | 16°40′ Gemini | 20°00′ Gemini | Gemini | Pisces |
Vimshottari dasha starts from the nakshatra the Moon was in. Ardra is ruled by Rahu, so anyone born with the Moon here begins life inside a 18-year Rahu mahadasha — but almost nobody gets the whole of it. The part remaining is the part of the nakshatra the Moon had not yet crossed, so a Moon at the very start gets 18 years and a Moon near the end gets months.
| Moon in | From | Rahu mahadasha remaining | Of the arc still ahead |
|---|---|---|---|
| Pada 1 | 6°40′ Gemini | 18.0 – 13.5 years | 75–100% |
| Pada 2 | 10°00′ Gemini | 13.5 – 9.0 years | 50–75% |
| Pada 3 | 13°20′ Gemini | 9.0 – 4.5 years | 25–50% |
| Pada 4 | 16°40′ Gemini | 4.5 – 0.0 years | 0–25% |
The exact figure needs the Moon’s degree, not just the pada — find yours, and the dasha pages carry the 120-year sequence that follows it.
These are classifications from the tradition rather than anything computed from the arc. They are given because kundli matching actually uses them, and each line says which part.
| Classification | This nakshatra | What it is used for |
|---|---|---|
| Gana | Manushya | temperament class — Deva, Manushya or Rakshasa. Worth six of the thirty-six Ashtakoot points in kundli matching. |
| Yoni | Dog (female) | an animal, used for the four-point Yoni koota in matching. The pairing rules are about the animals, not the people. |
| Nadi | Aadi | Aadi, Madhya or Antya. Eight points — the largest single koota — and two charts sharing one is the Nadi dosha. |
Nothing on this page says what a person born in Ardra is like. The arc and the padas above are arithmetic; a temperament is a reading, and it depends on the rest of the chart rather than on the Moon alone.
6°40′ Gemini to 20°00′ Gemini — 13°20′ of the sidereal ecliptic, Lahiri ayanamsa. It is 4 padas in Gemini.
Rahu. That is what makes it the start of Rahu’s mahadasha: anyone born with the Moon here begins life in a 18-year Rahu period, with the part already elapsed depending on how far through the nakshatra the Moon was.
Four, of 3°20′ each: pada 1 6°40′ Gemini in Gemini, navamsa Sagittarius; pada 2 10°00′ Gemini in Gemini, navamsa Capricorn; pada 3 13°20′ Gemini in Gemini, navamsa Aquarius; pada 4 16°40′ Gemini in Gemini, navamsa Pisces.
Gana Manushya, yoni Dog (female), nadi Aadi. These are the classifications kundli matching uses — six points for gana, four for yoni and eight for nadi out of thirty-six.
It needs a birth time, because the Moon crosses a nakshatra in about a day. The free kundli gives you the nakshatra, the pada and the dasha that follows from it.