What is Vedic astrology?
Vedic astrology, called Jyotish ("the science of light") in Sanskrit, is a way of reading the sky that has been passed down in India for more than three thousand years. It is also known as Indian astrology. From the state of the sky at the moment of birth, it reads a person's nature and the flow of the different periods of their life.
The biggest difference from Western astrology: your sign may shift
When people look up their sign in Vedic astrology, many find it is one sign earlier than the one they know. Western astrology uses the tropical zodiac, anchored to the spring equinox; Vedic astrology uses the sidereal zodiac, anchored to the actual positions of the stars. The gap between the two is currently about 24 degrees. Someone who has always been an Aries can easily turn out to be a Pisces in Vedic astrology. Neither system is wrong; they simply take a different reference point. Vedic astrology uses where the planets actually are in the sky right now.
The Moon matters more than the Sun
Western astrology puts the Sun sign first. Vedic astrology gives more weight to the Moon. If the Sun is the face you show society, the Moon is how your mind moves: what calms you and what wears you down. Vedic astrology also divides the Moon's path into 27 Nakshatras (lunar mansions), so two people born under the same sign can receive very different readings. Many people say the Vedic description of their character rings truer than the Western one, and this finer grain is a large part of the reason.
Dasha: a system for reading "when"
A distinctive feature of Vedic astrology is the Dasha, a system of planetary periods. Starting from the position of the Moon at birth, life is divided into periods ruled by each planet: a Jupiter period, a Saturn period, a Rahu period and so on, each lasting years. Feelings such as "everything I do seems to stall right now" or "my surroundings changed all at once" are read through the quality of the current period. Being able to work with the flow of a life, not just character, is the main practical difference from Western astrology.
Is Vedic astrology accurate?
It is called accurate largely because it uses the time of birth and works with a great deal of information, which makes its descriptions concrete. Not only the sign but the ascendant (Lagna), the lunar mansion, the placement of each planet, and the timing. The finer the combination, the higher the resolution of the reading. That said, the positions of the planets do not fix future events. The same placement shows up differently depending on circumstances and the person's own choices. What Vedic astrology offers is a set of clues: the tendencies you carry, and what kind of wind is blowing in the current period. Treating it as a guarantee of outcomes leads to poor decisions.
What you need for a reading
Three things: your date of birth, time of birth and place of birth. The time of birth is especially important because it determines the ascendant and the houses (the divisions of life's areas), and a difference of a few minutes can change what is read. It is often recorded on a birth certificate or hospital record, so check it if you can. If it is truly unknown, one approach is to calculate for 12:00 noon and focus on the parts that do not depend on the time: the Moon sign, the Nakshatra and the broad outline of the Dasha.
This article introduces general ideas from Vedic astrology. It does not guarantee future events and is not a substitute for medical, legal or financial advice.