Vedic astrology, commonly called Jyotisha, is a family of Indian astrological traditions that interprets planetary positions, zodiac signs, houses and time cycles. A common modern approach uses a sidereal zodiac with a specified ayanamsha, rather than the tropical zodiac widely used in contemporary Western astrology. The natal horoscope, or kundali, provides the base for interpreting the interaction of grahas, rashis, bhavas and timing systems.
Rashis and the sidereal zodiac
The twelve rashis are Mesha, Vrishabha, Mithuna, Karka, Simha, Kanya, Tula, Vrischika, Dhanu, Makara, Kumbha and Meena. A rashi indicates a region of the zodiac in which a graha or the Ascendant can fall. The choice of ayanamsha matters because different reference conventions produce small differences in calculated positions. A tropical sign and a sidereal sign should not be treated as equivalent without explaining that distinction.
Navagraha and the twelve bhavas
The nine grahas include the Sun, Moon, Mars, Mercury, Jupiter, Venus and Saturn, as well as Rahu and Ketu, the lunar nodes. Their symbolic functions are interpreted through dignity, house position, rulership and special relationships. The twelve bhavas organize the fields of life from personal circumstances and resources to partnership, work, beliefs and withdrawal. One graha’s position should never be read in isolation from the rest of the horoscope.
Nakshatras and divisional charts
Nakshatras divide the ecliptic into lunar mansions, commonly twenty-seven sections of 13 degrees and 20 arcminutes each. The Moon’s nakshatra plays an important role in several timing systems. Divisional charts such as the navamsha (D9) are used in particular traditions for additional layers of interpretation; the calculation method and birth time must be handled carefully.
Dashas and predictive periods
Dasha systems organize periods of time by planetary sequences. The Vimshottari dasha is a widely taught example that begins from the natal Moon’s nakshatra and applies a traditional sequence of planetary periods and subperiods. A complete reading draws on the natal chart, planetary condition, timing system and relevant transits. These are symbolic interpretive methods rather than scientific ways of establishing future events.
Guides in this section
The foundations of Jyotisha become clearer when the rashi zodiac, lunar mansions, grahas and houses are studied before predictive dashas. Keep ayanamsha, birth time and the interpretive tradition explicit.
- Vedic Zodiac Signs (Rashi) — The twelve rashis and sidereal calculations.
- Nakshatras — The twenty-seven lunar mansions and their padas.
- Vedic Planets & Houses — Navagraha and the twelve bhavas.
- Dasha Systems — Planetary timing periods, including Vimshottari.