Nakshatra & pada calculator

The 27 divisions, and why they matter more than the 12

The zodiac gets divided two ways in jyotisha. Twelve rashis of 30° each, which everybody knows about, and twenty-seven nakshatras of 13°20' each, which is where most of the actual machinery lives.

Your nakshatra is the one the Moon occupied at your birth, and three things are built directly on it. The Vimshottari dasha — the timing system that tells an astrologer which planet is running your life this decade — starts from your nakshatra's lord and from how far through it the Moon had travelled. Most of the 36-guna marriage matching is derived from nakshatra attributes rather than from signs. And the naming ceremony takes its first syllable from the pada, the quarter of the nakshatra.

So a wrong nakshatra is not a small error. It moves your dasha, your matching, and your name.

The boundary is the whole story

The Moon moves about thirteen degrees a day, so it crosses from one nakshatra into the next roughly every twenty-three hours. That means a birth an hour on either side of a boundary gets a different answer, and it means the single most common reason two astrologers hand a family two different nakshatras has nothing to do with skill or school — it is that the birth was near an edge and neither of them said so.

This page says so. Every answer prints the clock time the Moon entered your nakshatra and the clock time it leaves, in the local time of your birth place, and if the birth falls within ninety minutes of either edge the headline says that before it says anything else.

The boundaries are found by bisecting the real ephemeris, not by dividing 13°20' by an average daily motion. The Moon's speed varies by roughly twenty per cent between perigee and apogee, so the average is off by as much as two and a half hours at the extremes — comfortably enough to put somebody in the wrong pada, which is exactly the quantity a naming ceremony depends on.

The pada, and the four quarters

Each nakshatra divides into four padas of 3°20'. Twenty-seven times four is 108, which is where the number comes from — 108 padas in a circle, one for each bead.

The pada matters twice. It determines the navamsha placement, which is the divisional chart every serious reading checks a planet's real strength against. And it carries the traditional naming syllable. If you have ever wondered why a family names a child something specific after consulting a panditji, the pada is usually the reason.

Because a pada is only 3°20' wide, the Moon crosses one about every six hours. The window is printed for that too.

What the attributes actually are

Every nakshatra carries a set of classical attributes, and they get handed over constantly with no explanation, which is how a perfectly ordinary word ends up frightening somebody.

• Lord — the planet ruling the division. Your dasha sequence starts from this one, which makes it the most practically consequential attribute of the set.
• Deity — the presiding devata. Symbolic rather than computational; nothing in the arithmetic uses it.
• Gana — Deva, Manushya or Rakshasa. This is a temperament classification used in matching. Rakshasa is routinely mistranslated as demonic; in this context it describes intensity and self-direction, not character, and being told you have "rakshasa gana" is not being told anything bad about you.
• Yoni — an animal symbol with a gender, used in one of the eight kootas.
• Nadi — Adi, Madhya or Antya. This is the heaviest single koota in 36-guna matching, worth eight of the thirty-six points, and it is the one that most often causes a match to be refused.

We give you the attributes. We do not give you a page of personality description built on them, because that description is not in the texts we cite — it accumulated later, and presenting it at the same weight as the attributes themselves would be exactly the sleight of hand this site exists not to perform.

Why your nakshatra may differ from one you were told

Three reasons, in order of how often they are the answer.

• The boundary. Covered above, and it is by far the commonest. Check the window this page prints against the birth time you actually have.
• The ayanamsa. Sidereal positions depend on where you place the start of the zodiac, and the schemes differ by a degree or more. A degree is a fifth of a pada. We use Lahiri, which is the official Indian standard, and we print the exact figure on every answer.
• The birth time itself. Certificates round. Memories round further. If the window is narrow and your time came from either, the honest position is that your nakshatra is unsettled, and saying so is more useful than picking.

How this is computed

The Moon's longitude comes from the Swiss Ephemeris, sidereal, with the Lahiri ayanamsa, for your birth moment at your birth coordinates. The timezone offset is computed for that specific date rather than read from a fixed table, so historic daylight-saving rules apply as they actually stood — which matters more often than people expect, particularly for births in North America and in India during the war years.

The same engine runs our paid Life Kundali, so this free answer and the booklet cannot disagree.

Common questions

What is my nakshatra used for?

The Vimshottari dasha starts from it, the 36-guna matching is largely built on it, and the naming syllable comes from its pada. If you only remember one thing from a chart, this is a better candidate than your sign.

Is one nakshatra better than another?

No, and the framing itself is the problem. The attributes are used comparatively — in matching, in timing, in muhurta — not as a ranking of people. Any page that lists lucky and unlucky nakshatras is selling something.

My birth time is uncertain. Should I bother?

Yes — run it, and read the window rather than the name. If the window is wide and your time sits in the middle of it, your nakshatra is solid despite the uncertainty. If it is narrow, you have learned something genuinely useful about the limits of your own chart.

Do you keep my birth details?

No. The details come in for the computation and are dropped when the answer goes back. No account, no email, nothing written anywhere — which is why there is no consent box on the form.