Foundations of Vedic Astrology
The core concepts, mathematics and logic behind every Vedic astrology calculation — from the zodiac and planets to houses, ayanamsa, panchang and the ascendant.
Orientation
What Vedic astrology is, how it differs from Western astrology, and why mathematics underpins every calculation.
The Zodiac and Its Actors
The 12 signs, the 9 planets, and the 12 houses — the core building blocks of any birth chart.
The 12 Signs (Rashis) - The Zodiac
Learn the 12 zodiac signs, their elements and qualities, and how to calculate a sign from a longitude.
Planets (Grahas) - The Cosmic Actors
Learn the 9 planets, what they represent, their speeds, retrograde motion, and how their positions are calculated.
Houses (Bhavas) - The 12 Life Areas
Learn the 12 houses, house systems, and how planets are assigned to houses in Whole Sign.
The Mathematics
Longitude arithmetic and the Ayanamsa conversion that turns Western tropical positions into Vedic sidereal ones.
Longitude, Degrees, and Basic Math
Master converting a raw longitude into sign, degree-in-sign, and degrees-minutes-seconds notation.
Ayanamsa - Tropical vs Sidereal Explained
Understand the Ayanamsa correction, why it exists, the main Ayanamsa systems, and how it changes over time.
Reading the Sky
Panchang (Tithi, Nakshatra, Yoga, Karana, Vara) and how the Ascendant is calculated from date, time and location.
Panchang Basics - Tithi, Nakshatra, Yoga
Learn the five elements of Panchang and how to calculate each from Sun and Moon longitudes.
Ascendant (Lagna) - The Rising Sign
Understand how the Ascendant is calculated, why location matters, how fast it changes, and how it defines the houses.