Tropical Geocentric Birth Chart Calculator

This calculator uses traditional tropical zodiac system and geocentric coordinate system.

The tropical zodiac is based on the seasons and the position of the Sun at the spring equinox. This is the system used by most Western astrologers. Each sign is exactly 30 degrees, starting with Aries at the spring equinox (March 20-21).

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.