The 27 nakshatras: your lunar mansion explained

Twenty-seven divisions of the zodiac, and the layer Western astrology has no equivalent for.

4 min read · Published 22 August 2026

Nakshatras are 27 divisions of the zodiac, each 13°20' wide, tracking the Moon's roughly 27-day journey around the sky. One mansion per day. Each has a ruling planet, a symbol and a body of traditional association. Your nakshatra usually means the one your Moon occupied at birth, and it's central to Vedic practice: it determines your dasha sequence, and it's consulted for marriage matching and timing in a way the Moon sign alone isn't.

Why 27

The 27-fold system closely tracks the Moon's roughly 27.3-day sidereal circuit: dividing the zodiac into 27 gives roughly one nakshatra per day of the Moon's journey, so the system follows where the Moon is, night by night. Some historical traditions also recognise a 28th mansion, Abhijit, between Uttara Ashadha and Shravana; the 27-fold list is the one Vimshottari uses.

Each nakshatra is exactly 13°20' of arc, which is 360 divided by 27. They cut across sign boundaries: a 30-degree sign contains two and a quarter nakshatras, so a nakshatra can straddle two signs.

Each also divides into four padas of 3°20', giving 108 padas in total, a number of some significance in Indian tradition, and the reason 108 recurs throughout Jyotisha.

Nakshatras beat signs for description, and I'd learn the 27 before the 12 if I were starting Jyotisha today.

The twenty-seven

#	Nakshatra	Ruling planet	Symbol
1	Ashwini	Ketu	Horse's head
2	Bharani	Venus	Yoni
3	Krittika	Sun	Blade or flame
4	Rohini	Moon	Cart or chariot
5	Mrigashira	Mars	Deer's head
6	Ardra	Rahu	Teardrop
7	Punarvasu	Jupiter	Quiver of arrows
8	Pushya	Saturn	Cow's udder; flower
9	Ashlesha	Mercury	Coiled serpent
10	Magha	Ketu	Throne
11	Purva Phalguni	Venus	Front legs of a bed
12	Uttara Phalguni	Sun	Back legs of a bed
13	Hasta	Moon	Hand
14	Chitra	Mars	Bright jewel
15	Swati	Rahu	Young shoot in wind
16	Vishakha	Jupiter	Triumphal arch
17	Anuradha	Saturn	Lotus
18	Jyeshtha	Mercury	Earring; umbrella
19	Mula	Ketu	Bunch of roots
20	Purva Ashadha	Venus	Fan; winnowing basket
21	Uttara Ashadha	Sun	Elephant tusk
22	Shravana	Moon	Ear; three footprints
23	Dhanishta	Mars	Drum
24	Shatabhisha	Rahu	Empty circle
25	Purva Bhadrapada	Jupiter	Front of a funeral cot
26	Uttara Bhadrapada	Saturn	Back of a funeral cot
27	Revati	Mercury	Fish; drum

The ruling planets repeat in a fixed nine-fold sequence (Ketu, Venus, Sun, Moon, Mars, Rahu, Jupiter, Saturn, Mercury) three times through the 27. That sequence isn't decorative: it's the order of the Vimshottari dasha system, and your birth nakshatra's ruler determines which planetary period you're born into.

What they are used for

Setting your dasha sequence. The single most consequential use. Your Moon's nakshatra determines which planetary period your life starts in and how far through it you were born. Everything in the dasha timeline follows from it.
Marriage matching. The kuta or guna milan system scores compatibility largely from the two people's nakshatras. It remains in active use in arranged-marriage contexts.
Muhurta, electional timing. Choosing an auspicious moment for an undertaking is done substantially by nakshatra.
Character reading. Each nakshatra has traditional associations of temperament, drawn from its symbol, deity and ruling planet.

Why the Moon's nakshatra and not the Sun's

Because Jyotisha treats the Moon as the primary personal significator, see why Vedic astrology prioritises your Moon sign.

Every planet occupies a nakshatra, and a full reading considers them all. But 'your nakshatra' without qualification means the Moon's, and it's the one used for dashas and matching.

This makes birth time matter more than for a Sun sign. The Moon moves roughly 13 degrees a day, so it crosses a nakshatra boundary about once a day, meaning a birth without a recorded time can leave your nakshatra uncertain, and with it your entire dasha timeline.

Locating your nakshatra

You need a sidereal Moon position, which means an ayanamsa has been applied, see the ayanamsa. A tropical Moon position will give you the wrong nakshatra roughly one time in two, because the 24-degree shift moves the Moon nearly two full nakshatras.

The AsterNym Vedic calculator does this: it takes the Moon's tropical longitude, subtracts the Lahiri ayanamsa for your birth instant and reads off the nakshatra and pada. Without a birth time it scans the whole day and tells you whether the nakshatra holds or at what local time it changes.

Your natal chart shows the same Moon in tropical terms. The two pages start from one measurement and differ only in where zero is.