Vedic vs Western Astrology

Both traditions read the same planets in the same sky, yet a Western Leo can turn out to be a Vedic Cancer. Here's why, and the other ways Jyotish (Vedic astrology) and Western astrology differ.

1. Sidereal vs tropical zodiac

• Western astrology uses the tropical zodiac: 0° Aries is the spring equinox, so the signs are tied to the seasons.
• Vedic astrology uses the sidereal zodiac: the signs are tied to the fixed stars.

The Earth's axis slowly wobbles (precession), so the equinox drifts backwards against the stars by about 1° every 72 years. The gap between the two zodiacs, the ayanamsa, is now about 24°. Our tools use the Lahiri ayanamsa, the Indian government standard.

2. Moon sign vs Sun sign

Western astrology leads with the Sun sign. Vedic astrology leads with the Moon sign (Rashi) and the ascendant (Lagna), because the Moon governs the mind and the timing of events.

3. Nakshatras

Vedic astrology adds 27 nakshatras, lunar mansions of 13°20′ each, on top of the 12 signs. They give much finer detail. See the full nakshatra list.

4. Dashas for timing

Western astrologers time events mainly with transits and progressions. Vedic astrologers use dashas, planetary periods calculated from the birth nakshatra. Read Vimshottari dasha explained.

5. Houses

Traditional Vedic astrology usually uses whole-sign houses: the rising sign is the whole 1st house. Western astrology most often uses Placidus, where houses are unequal.

6. The planets used

Vedic astrology uses the seven visible planets plus Rahu and Ketu, the lunar nodes. Uranus, Neptune and Pluto are rarely used. Western astrology includes all three.

7. Charts look different

Vedic charts are drawn as squares: the North Indian diamond, where houses are fixed and signs move, or the South Indian grid, where signs are fixed. Western charts are circular wheels.

Try both

• Your Western Sun sign: zodiac sign finder
• Your Vedic chart, with nakshatras, dashas and both chart styles: free Kundli