Nakshatra calculator

A nakshatra is one of the 27 lunar mansions of Vedic astrology, each spanning 13 degrees and 20 minutes of the sky. Your birth star, or janma nakshatra, is the one the Moon occupied when you were born. It is an older and finer layer than the twelve signs, laid over the same circle of sky.

Two people with the same moon sign usually carry different nakshatras, which is the first clue to how personal this signature is. Each nakshatra divides again into four quarters, called padas, so the map grows finer still. The tradition gives every star its own temperament, its own deity and its own story. That is why a nakshatra reading feels specific where a sun sign feels generic.

Luna takes the Moon’s sidereal longitude from the Swiss Ephemeris, accurate to the arc-second, and maps it into the 27 divisions using the Lahiri ayanamsa. The Moon spends about a day in each nakshatra, so your date and place are usually enough to name your birth star with confidence.

If the Moon crossed from one nakshatra into the next on your birthday, the exact time decides which one is yours, and it also fixes your pada, the quarter within the star that sharpens the reading.

The nakshatra is not decoration. It is machinery. Your birth star seeds the vimshottari dasha, the 120-year timing cycle that Vedic astrology runs your life against, so it shapes when your chapters begin and end, not only who you are.

Classical compatibility matching starts from the birth stars of two people, long before it looks at anything else. Your nakshatra is one thread in a much larger weave: one of more than 2,000 points in your full Vedic birth chart.