What is an astrology system, and why do they disagree?
If you've ever compared two readings of your birth chart and felt like they were describing two different people, you weren't imagining it. Astrology isn't one single thing — it has several different systems, and each one uses a different zodiac, a different house framework, and sometimes even a different set of planets. None of them are wrong; they're just different lenses on the same moment.
Vedic (Parashari)
The Vedic system is the oldest and most widely practiced in India. It uses the sidereal zodiac (anchored to the actual positions of the stars, with the Lahiri correction) and the Whole Sign house framework. Its great strength is timing — the Vimshottari Dasha cycle gives a year-by-year breakdown of which planet is influencing your life.
KP (Krishnamurti Paddhati)
KP is a 20th-century refinement of the Vedic system. It keeps the sidereal zodiac but adds sub-lord theory — each degree of each sign is sub-divided in Vimshottari proportions, so a planet's effect depends not just on its sign but on whose sub it sits in. People love it for precise event timing (marriages, job changes) more than for personality reading.
Western (tropical)
The Western system uses the seasons rather than the stars — Aries always starts at the spring equinox. The houses are Placidus, which divides time rather than space. The same birth moment can put you in Aries by the Vedic sidereal system but Taurus by the Western tropical one, because the two zodiacs have drifted about 24° apart.
Beyond the Greek and Indian roots
Then there are systems with completely different roots: Chinese Bazi (four pillars built from the year, month, day and hour), Korean Saju, Pythagorean numerology, and Tarot. These don't compute a chart from the sky at all — they work from number theory, archetype cards, and lunar calendars.
Which one should you use?
Whatever resonates with you. LuckMap lets you switch systems anytime, so you can run the same question through Vedic and KP and compare side by side. Most people find the answers agree on the big themes and differ on the finer timing details — and that comparison is often the most useful reading of all.