How do Western astrology and Vedic astrology differ?

Western astrology and Vedic astrology are two distinct systems of astrology that originated in different cultural and historical contexts. While they share some common foundations, they also have notable differences in terms of zodiac, house system, techniques, and philosophical approach. Here are key differences between Western and Vedic astrology:

1. Zodiac System:

   • Western Astrology: Western astrology primarily uses the tropical zodiac, which is based on the position of the Sun relative to the Earth's equator. The tropical zodiac is divided into 12 equal segments, each associated with a specific sign (Aries, Taurus, Gemini, etc.).
   • Vedic Astrology: Vedic astrology uses the sidereal zodiac, which is based on the actual positions of the stars. The sidereal zodiac is divided into 12 equal segments, and the signs are named after the constellations they align with. The sidereal zodiac is often about 23 degrees ahead of the tropical zodiac.

2. Lunar Influence:

   • Western Astrology: While the Moon is considered important in Western astrology, it is not as central as in Vedic astrology. The Sun and other planets often play more prominent roles in Western astrological interpretations.
   • Vedic Astrology: The Moon holds significant importance in Vedic astrology. The Moon sign, known as the "Rashi," is considered a key factor in personality analysis, and the Moon's Nakshatras (lunar mansions) are also crucial in chart interpretation.

3. House System:

   • Western Astrology: Western astrology typically uses the Placidus house system, which divides the celestial sphere into unequal segments based on the local horizon and meridian. The houses represent specific areas of life.
   • Vedic Astrology: Vedic astrology commonly uses the Whole Sign house system, where each house covers an entire sign, irrespective of the size of the constellations. Vedic astrology also utilizes divisional charts, such as the Navamsa, for detailed analysis of specific life areas.

4. Planetary Dignities:

   • Western Astrology: Western astrology emphasizes the concept of planetary rulership, where each sign is ruled by a specific planet. Planetary aspects and the concept of essential dignity (dignities and debilities) play a significant role.
   • Vedic Astrology: Vedic astrology uses a system of planetary rulership called "Graha Adhipatya." The concept of planetary dignity is also present but may differ from Western astrology.

5. Predictive Techniques:

   • Western Astrology: Western astrology uses techniques such as progressions, solar returns, and transits for predictive analysis. Aspects and planetary movements are essential in forecasting.
   • Vedic Astrology: Vedic astrology places emphasis on planetary periods known as "Dashas" and sub-periods (Bhuktis) for predictive analysis. Transits, known as "Gochara," are also considered.

6. Philosophical Approach:

   • Western Astrology: Western astrology often focuses on psychological insights, self-discovery, and personal growth. It is associated with individualistic and humanistic perspectives.
   • Vedic Astrology: Vedic astrology has deeper roots in Hindu philosophy and is often linked with spiritual and karmic concepts. It may involve a more deterministic worldview, considering the influence of past karma on an individual's current life.

While both Western and Vedic astrology share a common ancestry in ancient astrology, their distinct approaches and techniques make them unique systems with different emphases and applications. Individuals may choose to explore both or prefer one system over the other based on their cultural background, personal beliefs, or specific interests.