Uttara Ashadha
The twenty-first of the 27 lunar mansions, the layer of the Vedic sky that Western astrology does not have. Uttara Ashadha is the nakshatra of the lasting victory: its deities are the Vishvadevas, the gods taken together, its symbol is the elephant's tusk, and its stars are in the body of the Archer. The name means the later of the two unconquered ones.

What the tradition says
Uttara Ashadha's image is of the win that holds: the elephant that does not need to hurry, the victory that is still there ten years later. The classical texts read it as endurance, integrity, a slow and complete way of achieving things, and a leadership that is trusted because it is not showy. The Sun rules the mansion, which gives the endurance its dignity; this is the win that was deserved.
The honest shadow in the sources is the weight of always being the reliable one: a rigidity about principle, an isolation that comes with being trusted more than liked, and a stubbornness that mistakes itself for integrity. The texts say Uttara Ashadha people must learn that not every hill needs holding.
A Uttara Ashadha Moon
An Uttara Ashadha Moon describes a mind that lasts: feelings that are steady, principled and slow to change, a preference for results over speed, and a loneliness in the responsibility. Anyone born with the Moon here begins life in a Sun period, and the sequence of their planetary seasons runs from there.
The four padas
Uttara Ashadha crosses a sign boundary: its first pada falls in sidereal Sagittarius and the other three in Capricorn. The tradition reads the Sagittarius pada as the victory won for a principle, and the Capricorn padas as the same endurance put to building, in work, in institutions, in a life. Two Uttara Ashadha Moons either side of that line share the tusk and differ in what it is used for.
In degrees: pada 1 from 26°40′ Sagittarius to 0° Capricorn with a Sagittarius navamsa, pada 2 from 0° Capricorn to 3°20′ Capricorn with a Capricorn navamsa, pada 3 from 3°20′ Capricorn to 6°40′ Capricorn with a Aquarius navamsa and pada 4 from 6°40′ Capricorn to 10° Capricorn with a Pisces navamsa.
Why your Western chart never mentions this
There is no Western equivalent of Uttara Ashadha.
Western astrology divides the sky into twelve signs and stops. The Vedic system lays 27 mansions of 13°20′ over its twelve signs, a finer grain with its own deities, symbols and timing system. There is no Western equivalent of Uttara Ashadha, which is why a person can know their "big three" thoroughly and still meet something new the first time their Vedic chart is calculated. It is not that one system is finer-grained and therefore truer; they are answering different questions, and we show you both so you can see where they agree, and where they argue.
The Sun passes through Uttara Ashadha from about 11 January to 24 January each year, which Western astrology calls Capricorn and Aquarius. A Moon can be here on any day of the year, since the Moon crosses a mansion in about a day, and it is the Moon the tradition reads first.
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Questions people ask
Is Uttara Ashadha a good nakshatra?
The tradition does not rank the mansions as good and bad; each carries a capacity and a cost, and Uttara Ashadha's are the gift of the lasting win and the tax of always being the one who holds. Readings that call nakshatras lucky or unlucky are selling something.
What if my Moon is right on the Sagittarius to Capricorn boundary?
Then your pada matters more than usual, and your birth time matters more than usual, since the Moon moves about 13 degrees a day. The calculator shows your exact degree and flags it when a placement sits near an edge.
I am a Sagittarius in Western astrology. Is Uttara Ashadha the same thing?
No. Your Western sign comes from the tropical zodiac; Uttara Ashadha is a sidereal mansion that partly overlaps sidereal Sagittarius. You can be a Western Sagittarius with no Uttara Ashadha placements at all, and a Western Capricorn with a Uttara Ashadha Moon. The free chart shows your actual pair.
We read charts for pattern and coherence, not prediction. Nothing here tells you what will happen, and nothing here tells you who you are; it shows a structure and leaves the judgement with you.