Nakshatra Matching (Guna Milan Without a Birth Time)

Why this tool asks for the Moon sign as well as the star

A nakshatra spans 13°20' of the zodiac and a sign spans 30°, so the two do not line up. Nine of the twenty-seven nakshatras straddle a boundary: Krittika falls in both Aries and Taurus, Mrigashira in Taurus and Gemini, Punarvasu in Gemini and Cancer, Uttara Phalguni in Leo and Virgo, Chitra in Virgo and Libra, Vishakha in Libra and Scorpio, Uttara Ashadha in Sagittarius and Capricorn, Dhanishta in Capricorn and Aquarius, and Purva Bhadrapada in Aquarius and Pisces. For those nine, knowing the star tells you nothing about the sign. (Lists that say eight usually forget Purva Bhadrapada, whose fourth pada sits in Pisces.)

That matters because four of the eight kootas are computed from the Moon sign and never look at the star at all: Varna (1 point), Vashya (2), Graha Maitri (5) and Bhakoot (7). That is 15 of the 36 points. Two more - Gana and Nadi - score from the star but use the sign to decide whether a cancellation (parihara) applies. A matching tool that takes only the star is quietly guessing on all of that.

So this tool takes both. The sign menu is limited to the sign or signs your chosen star can actually occupy, which means an impossible pair - a Moon in Ashwini reported as Pisces, say - cannot be entered. For the eighteen stars that sit wholly inside one sign, the sign is filled in for you.

The half-sign question, and where an honest default is still a default

Vashya, the two-point koota of mutual attraction, sorts the twelve signs into five classes - quadruped, human, aquatic, wild-animal and insect - and two signs are split down the middle. Sagittarius is human in its first half and quadruped in its second; Capricorn is quadruped in its first half and aquatic in its second. So for those two signs the Vashya class depends on the Moon's exact degree, which a birth star alone does not always give.

The calculation engine documents its fallback for that case openly: with no degree to hand it reads the Moon as first-half, which it calls "a defined default, not a guess". It is still wrong for a second-half Moon, and this page will not pretend otherwise.

What it can do is narrow the gap. Four of the six star-and-sign combinations that arise in those two signs are settled by the star itself - Moola lies wholly in the first half of Sagittarius, Uttara Ashadha wholly in its second half, Uttara Ashadha wholly in the first half of Capricorn and Dhanishta wholly in its second - so no default is applied there at all. Only Purva Ashadha in Sagittarius and Shravana in Capricorn genuinely straddle the mid-point, and for those two the page asks you rather than deciding silently. If you do not know, it tells you on the result that the two Vashya points rest on the first-half default.

What the eight kootas are read from

The result table shows, for every koota, whether its score came from the birth star, from the Moon sign, or from both:

• Varna (1 point) - Moon sign only.
• Vashya (2 points) - Moon sign, plus the degree within it for Sagittarius and Capricorn.
• Tara (3 points) - birth stars only, counted from one to the other.
• Yoni (4 points) - birth stars only, through the animal each star carries.
• Graha Maitri (5 points) - Moon signs only, through the friendship of their two lords.
• Gana (6 points) - birth stars, with the Moon signs consulted for the cancellation rule.
• Bhakoot (7 points) - Moon signs only, through the distance between them.
• Nadi (8 points) - birth stars, with the Moon signs consulted for the cancellation rule.

Where the rules come from, and where they do not

Two of the eight kootas carry a chapter-and-verse in the calculation source, and both are shown on the page as a tappable citation. Vashya follows Muhurta Chintamani 6.23 (Rama Daivajna, 1600 CE) with its vashya-koshtaka appendix - a text that fixes some cells of the grade table and expressly leaves the rest "to be known from usage", so the unfixed cells are a disclosed convention rather than doctrine. Yoni follows Muhurta Chintamani 6.25-26 read with the Piyushadhara commentary, whose verse closes the set of seven mortal-enemy animal pairs; the two printed editions of the grade chart disagree on 41 of the remaining pairs, and those keep a neutral default with the disagreement reported rather than resolved. The Yoni citation on the result is therefore graded per pair rather than shown as one flat claim: classical where the verse settles it, traditional where only the two printed charts agree, and marked "no classical source located" on the 41 contested pairs, where the number shown is our own default and not a reading of the text.

The other six - Varna, Tara, Graha Maitri, Gana, Bhakoot and Nadi - do not carry a named text and verse in the source. The Gana, Bhakoot and Nadi cancellation rules are annotated as cross-checked against more than one source without a reference being recorded, and the Graha Maitri ladder is described in the code itself as inherited rather than traced. The page says exactly this instead of lending them the citation sitting next to them.

What a star-only match cannot see

Guna Milan is one layer of marriage matching, and the layer that happens to need the least information. Everything that depends on the rising sign is out of reach without a birth time: both ascendants, the navamsa chart, the running dasha periods, papasamyam, and Mangal (Kuja) dosha, which is judged from the house Mars occupies and therefore cannot be settled from a Moon sign alone.

If both birth times are known, use the full kundli matching page instead - it does everything here and then the rest. If they are not, this reading is the honest subset, and it is the same subset a traditional matcher works from when only the stars are on the horoscope slip.