Mrigashira
The fifth of the 27 lunar mansions, the layer of the Vedic sky that Western astrology does not have. Mrigashira is the nakshatra of the search: its deity is Soma, the Moon god, its symbol is a deer's head, and its stars are the small cluster at the head of Orion. The name means the deer's head.

What the tradition says
Mrigashira's image is of the deer that is always looking: alert, curious, moving, and never quite arrived. The classical texts read it as a restless intelligence, a love of the chase in learning and in people, and a gentleness that goes with the deer. Mars rules the mansion, which gives the search its drive; this is curiosity with a will behind it.
The honest shadow in the sources is the search that cannot end: a suspicion of whatever has been found, a fickleness in attachment, and a nervous quality that the deer's timidity names. The texts say Mrigashira people must learn to stop where they are long enough to see it.
A Mrigashira Moon
A Mrigashira Moon describes a mind that looks: thoughts that move from one thing to the next with real interest, a need for novelty in feeling as well as in fact, and a tenderness that is easily startled. Anyone born with the Moon here begins life in a Mars period, and the sequence of their planetary seasons runs from there.
The four padas
Mrigashira crosses a sign boundary: its first two padas fall in sidereal Taurus and the last two in Gemini. The tradition reads the Taurus padas as the search for something to hold, comfort, beauty, a place, and the Gemini padas as the search for something to know. Two Mrigashira Moons either side of that line share the deer and differ in what it is looking for.
In degrees: pada 1 from 23°20′ Taurus to 26°40′ Taurus with a Leo navamsa, pada 2 from 26°40′ Taurus to 0° Gemini with a Virgo navamsa, pada 3 from 0° Gemini to 3°20′ Gemini with a Libra navamsa and pada 4 from 3°20′ Gemini to 6°40′ Gemini with a Scorpio navamsa.
Why your Western chart never mentions this
There is no Western equivalent of Mrigashira.
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 Mrigashira, 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 Mrigashira from about 8 June to 22 June each year, which Western astrology calls Gemini and Cancer. 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.
About 60 seconds · needs your birth date, time and place · unknown time handled honestly
Questions people ask
Is Mrigashira a good nakshatra?
The tradition does not rank the mansions as good and bad; each carries a capacity and a cost, and Mrigashira's are the gift of curiosity and the tax of never arriving. Readings that call nakshatras lucky or unlucky are selling something.
What if my Moon is right on the Taurus to Gemini 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 Taurus in Western astrology. Is Mrigashira the same thing?
No. Your Western sign comes from the tropical zodiac; Mrigashira is a sidereal mansion that partly overlaps sidereal Taurus. You can be a Western Taurus with no Mrigashira placements at all, and a Western Gemini with a Mrigashira 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.