Rashis

A rashi is a zodiac sign, a 30° stretch of the starry circle. There are twelve of them, from Aries to Pisces, and together they make up the full 360° circle. If a nakshatra gives a day its fine coloring, a rashi sets a larger backdrop: the sign the Moon is passing through colors the mood of the day, while the sign the Sun is passing through colors the mood of the month.

This section is an overview. It explains what a rashi is in general, how the sidereal zodiac of jyotish differs from the familiar Western one, and how the articles on each of the twelve signs are laid out; the breakdown of individual signs is on their own pages.

What a rashi is

The word "rashi" means "heap," "collection" — it originally named a cluster of stars forming a constellation. In astrology, a rashi is an even 30°-wide stretch of the zodiac, and there are twelve such stretches. They run in a fixed order: Aries, Taurus, Gemini, Cancer, Leo, Virgo, Libra, Scorpio, Sagittarius, Capricorn, Aquarius, Pisces.

The position of any luminary or planet in a chart is described first of all through its rashi: the Moon in Taurus, the Sun in Leo. The same circle of signs underlies the nakshatras — the twenty-seven lunar mansions map onto the twelve signs, and each pada of a nakshatra falls within its own rashi. Signs and mansions are two different divisions of the same circle: a sign divides it into 12 equal parts, a mansion into 27.

The sidereal zodiac

The main way the zodiac of jyotish differs from the Western one is its starting point. Here the sidereal zodiac (nirayana) is used: the signs are anchored to the actual position of the stars. Western astrology uses the tropical zodiac, where the start of Aries coincides with the point of the spring equinox.

Because of precession — the slow drift of the Earth's axis — the equinox gradually shifts relative to the stars, and the two systems drift apart. The accumulated difference is called the ayanamsha; its exact value depends on which ayanamsha is taken as the starting point — this project's calculations use the Lahiri (Chitrapaksha) ayanamsha, currently around 24°. That's why the Sun, which by the Western calendar stands at the start of one sign, most often turns out in sidereal reckoning to still be in the previous one. For jyotish, a sign is a stretch of the actual starry sky, not a calendar box, and everything built on top of it rests on these sidereal boundaries.

Rulers, elements and qualities

Every rashi has a ruling planet — a graha whose nature sounds strongest in that sign. The classical count starts from Aries and rests on the seven classical grahas, without Rahu and Ketu:

• Mars rules Aries and Scorpio;
• Venus rules Taurus and Libra;
• Mercury rules Gemini and Virgo;
• the Moon rules Cancer;
• the Sun rules Leo;
• Jupiter rules Sagittarius and Pisces;
• Saturn rules Capricorn and Aquarius.

The luminaries, Sun and Moon, are each given one sign; the other five planets get two each. This order is fixed by Parashara, in the "Brihat Parashara Hora Shastra" — the tradition's foundational text.

Beyond its ruler, every sign is also assigned one of the four elements (tattvas) and one of three qualities. The elements run around the circle in fours: fire — Aries, Leo, Sagittarius; earth — Taurus, Virgo, Capricorn; air — Gemini, Libra, Aquarius; water — Cancer, Scorpio, Pisces. The quality describes how a sign acts: cardinal (chara) signs begin and push forward — Aries, Cancer, Libra, Capricorn; fixed (sthira) signs hold and see things through — Taurus, Leo, Scorpio, Aquarius; dual (dvisvabhava) signs combine and switch — Gemini, Virgo, Sagittarius, Pisces. Every sign is an intersection of element and quality: Aries is fire-cardinal, Taurus is earth-fixed, and so on for all twelve.

Planetary dignities are tied to rashis too. In some signs a planet is especially strong — this is exaltation; in the opposite sign it is weakened — debilitation; and the sign a planet rules is its own home — swakshetra. These readings are entirely tied to the rashi: the same planet reads differently in different signs.

Rashi and house

It is easy to confuse a rashi with a house of the horoscope, but they are different layers. A rashi is a fixed division of the sky: Aries is always Aries. A house (bhava) is a division tied to a moment and a place: it is counted from the point that was rising on the eastern horizon at that exact moment. That rising point is the lagna, the chart's ascendant; the sign it falls in becomes the first house, and the houses then run around the circle of signs from there — this is the whole-sign count, used in most schools and in this project's calculations (in systems with calculated cusps, such as bhava-chalita, house boundaries don't always match sign boundaries). The same Taurus falls in a different house for different people, depending on which sign was rising.

So a rashi answers the question "what is the nature of this stretch of sky," while a house answers "which area of this person's life does it touch." For reading the quality of a day, the rashi matters more: which sign the Moon is currently passing through, and which sign the Sun stands in.

In daily practice

In everyday timing, a rashi works on two speeds. The fast one is lunar: the Moon passes through a sign in roughly two and a quarter days, and the sign under the Moon sets the general tone of the day, with the panchanga refining the particulars on top of it. Under a cardinal sign it's easier to begin and get moving; under a fixed sign, to see things through and handle solid matters; under a dual sign, to negotiate, study, and combine several tasks.

The slow speed is solar: the Sun stands in a sign for about a month, and its move into the next sign, the sankranti, shifts the backdrop for a long stretch. The solar month sets the seasonal frame, the lunar sign the mood of a particular day within it.

How well a day's sign suits you personally depends on your chart. From the sign the Moon stood in at your birth, Chandrashtama is counted — the days when the transiting Moon passes through the eighth sign from your natal one and a person is especially vulnerable. From your birth nakshatra, in turn, Tara Bala is counted. A rashi sets the backdrop, personal factors adjust it — and together they show what your day is actually inclined toward.

How to read this section

Each sign's card gathers the load-bearing facts: its number in the row of twelve, its element, its quality, and its ruling planet. This is a checkable foundation you can verify against reference works and against your own chart's calculations.

The fuller article beneath the card explains the sign's meaning: what matters it inclines toward, how its combination of element and quality reads, and how it shows up in the coloring of a day under the Moon or the Sun. We deliberately leave theology and mythology aside — this section is practical, meant for a reader who needs the quality of the day, not a deep dive into the shastras.

A convenient reading order is this: start with this overview to see what a sign is in general and how the sidereal zodiac differs from the Western one; then open the sign the Moon is currently passing through, or your own birth sign, to see a rashi worked out in a concrete example. Over time, the twelve names will stop being unfamiliar words and take their place beside the familiar Aries and Pisces.