Koch Geocentric Birth Chart Calculator

This calculator uses Koch house system and geocentric coordinate system.

The Koch house system, developed by Walter Koch, is a quadrant system that divides houses based on the great circles through the east point and the MC. It is popular in German-speaking countries and among some modern astrologers for its focus on individual birth time accuracy.

The geocentric system calculates planetary positions from the center of the Earth, which is the traditional and most widely used approach in Western astrology. This perspective shows the celestial bodies as they appear from Earth's center, providing the standard astrological view used by the vast majority of astrologers.

For more features including saving charts, transit charts, synastry charts, and more settings please use True Sky online astrology software.