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Lahiri sidereal zodiac

Your chart, through
the sidereal zodiac.

Find your sidereal Sun and Moon, then see the Moon's nakshatra, its division of the zodiac. An exact birth time also gives your Ascendant and houses.

Placidus houses by default. Estimated positions. Your result is saved privately so you can return to it.

Date of birth

Use the local birth date in the modern (Gregorian) calendar, from 1600 to today.

Time of birth

Local birth time. For 2:30 pm, enter 14:30.

If the end is at or before the start, the range ends the next day. Equal times cover a full day.

We check the whole period. The Ascendant and houses are left out.

We check the whole local day and show any possible sign changes. The Ascendant and houses are left out.

Placidus uses your birth time to calculate unequal houses. Whole Sign gives each sign one house. Both need an exact time.

Choose the matching town or city on the next step.

Filter by country (optional)

Your chart is private. Sharing is always your choice.

Why your sign can change

The tropical zodiac starts at the March equinox. The sidereal zodiac uses a reference tied to the stars. The offset between them is called the ayanamsha.

Astriel uses a dated Lahiri offset, rather than subtracting a fixed number from every chart. Changing the zodiac can change a planet's sign while its physical position stays the same.

D1 signs and houses answer different questions

D1, also called the rashi chart, places each planet in its sidereal sign. A house describes the area of life associated with that placement.

Astriel calculates Placidus house boundaries from the birth time and location. A D1 sign box does not stand for one Placidus house. Whole Sign is available as an explicit choice.

Find the Moon's nakshatra

The 27 nakshatras divide the sidereal zodiac into sections of 13°20′. Each has 4 quarters, called padas, spanning 3°20′ each.

The result shows your Moon's section and traditional ruler. If the birth-time range or a nearby boundary leaves more than one possibility, both remain visible.

This calculator supplies positions. It does not calculate dasha periods or divisional charts such as D9.

Calculation method and accuracy

The Lahiri calculation uses a dated offset in the true ecliptic of date. Independent comparison samples retain small differences, which can change a placement near a boundary.

We flag nearby boundaries and show neighboring possibilities. These review zones are precautions, not certified error margins. Approximate or unknown times leave angles and houses unavailable.

Read Astriel's calculation methods