Calculator
Nakshatra calculator
Enter your birth date, time and place to find your Moon nakshatra (birth star), its pada and your Vedic Moon sign. No birth time? Tick the box: you’ll see every nakshatra the Moon was in that day, and the local time it crossed between them.
How this calculator works
It runs Twenty-Seven’s own chart engine, the same one behind the app. It turns your local birth time into universal time using the time-zone rules of your birth place on that date, computes where the Moon was, and subtracts the Lahiri ayanamsa (about 24° today) to get its sidereal position. The nakshatra is which 13°20′ slice that falls in; the pada is which quarter of it.
We test the engine against Swiss Ephemeris, the standard astronomy library. Its Moon agrees to within about an arcminute, which is a few minutes of clock time.
No birth time? Here is why we show two
The Moon moves about 13° a day and a nakshatra is 13°20′ wide, so on most days the Moon crosses from one mansion into the next at some hour. Instead of guessing noon and hiding that, we show both mansions and the time of the crossing. If you know roughly when you were born (“early morning,” “after dinner”), that is often enough to tell which one is yours.
What the result means
- Nakshatra: the lunar mansion your Moon was in. See Moon nakshatra meaning.
- Pada: the quarter of the mansion (1 to 4), each 3°20′, each in its own navamsa sign.
- Moon sign: the sidereal sign the Moon was in. It is often one sign earlier than a Western Moon sign: see why your sign is different.
Questions people ask
How do I find my nakshatra?
You need your birth date, place and ideally time. The calculator works out where the Moon was in the sidereal zodiac and which of the 27 nakshatras that falls in.
Can I find my nakshatra without a birth time?
Often, yes. The Moon is in one or two nakshatras on a given day. The calculator shows both and the local time it crossed between them.
Why does another site give a different nakshatra?
Usually because of the ayanamsa (most Vedic sites use Lahiri, as we do), the time zone at birth (daylight saving in old years is a common trap), or a birth time near a boundary.
Is my data saved?
No. The calculator works out the answer and sends it back. Nothing you enter here is stored.
Talk to the astrologer about your Moon
In the app, Twenty-Seven reads your mansion to you from its old stories, then talks with you about your life and remembers it. It is an AI, never a person.
Twenty-Seven is an AI astrologer, not a person. It makes no predictions: in its view the planets are clocks, not controllers.