Shatabhisha Nakshatra: The Hundred Healers, Rahu's Star in Aquarius

Degrees and padas: where Shatabhisha sits in the zodiac

Shatabhisha is the 24th of the 27 nakshatras and spans 6°40′–20°00′ Aquarius (306°40′–320°00′ of the sidereal zodiac, counted from 0° Aries). Each nakshatra is 13°20′ wide, in four padas of 3°20′. All four padas lie in Aquarius, so a Shatabhisha Moon is always a Aquarius Moon (Rashi). Before it comes Dhanishta; after it, Purva Bhadrapada.

Shatabhisha lies wholly in Aquarius, so the Moon sign is fixed; the padas carry Sagittarius, Capricorn, Aquarius and Pisces Navamsas, the third being vargottama. The star follows Dhanishta's Aquarius padas and ends where Purva Bhadrapada begins at 20°.

What Shatabhisha traditionally signifies

Varuna watches over oaths and the hidden order of the waters, and Shatabhisha's classical significations follow him: healing and medicine (the hundred physicians), secrets and their keeping, the sea and what is under it, solitude, and the rule-bound mind of the researcher. The empty circle is the sealed space where a cure is worked and also the void the recluse withdraws into. Rahu as lord adds the unconventional, the foreign and the technological; Saturn's sign adds detachment. Shatabhisha is rakshasa gana with the horse as its yoni animal and is classed as movable (chara), used in muhurta for travel and for beginning a course of treatment. The gana label is a matching class, not a judgment.

Moon in Shatabhisha: how the birth star is traditionally read

A Shatabhisha Moon is traditionally read as private, analytical and independent to the point of solitude: a person who works best alone or in a specialist field, keeps their own counsel, heals or fixes what others cannot see, and resists being managed.

The texts read the harder side as isolation, stubbornness and a cold manner when Rahu or the Moon is afflicted. Saturn's condition as sign lord, Rahu's placement and the Moon's house decide whether the circle is a laboratory or a wall.

Your first Mahadasha: Shatabhisha starts life in Rahu's period

In Vimshottari dasha the birth nakshatra decides the first major period (Mahadasha): its lord opens the sequence, and the Moon's exact degree within the star sets how much of that period was already spent at birth. For Shatabhisha the lord is Rahu, whose period lasts 18 years, so life begins inside Rahu Mahadasha with anything from days to almost 18 years of it left; Jupiter's 16 years follow. The Rahu Mahadasha guide covers how that period is traditionally read.

Rahu's eighteen years cover the whole of childhood for a Shatabhisha birth and usually reach into the first job; texts read the house Rahu occupies as the field where the star's solitary skill is first developed, and Jupiter's sixteen, arriving in the late teens or twenties, as the period that gives it a place in the world.

How to know whether Shatabhisha is your nakshatra

Your nakshatra is the one the Moon occupied when you were born, measured on the sidereal zodiac (Lahiri ayanamsa by default). The Moon moves about 13° a day, close to one nakshatra every 24 hours, so an unknown birth time can leave two candidates, and the pada needs the time to within a couple of hours. The nakshatra calculator returns the star, lord and pada from your birth details; the Moon sign calculator shows the Rashi.

When to have the AI Jyotishi read your chart for your nakshatra

Ask about the planets behind the star: where Rahu sits and with whom, how Saturn is placed, which house holds the Moon, whether the opening Rahu years are finished, and what the current period is asking a private person to open up or to keep sealed.

The AI Jyotishi reads your chart after it is calculated, takes the Moon's nakshatra together with the houses and the running dasha, and lists which parts of the chart it looked at. Software, not a human astrologer. Interpretation, not a prediction or professional advice.