Free Astrology Tools
Professional-grade astrology calculators powered by our precision computation engine. No signup required.
Birth Chart Calculator
Calculate your complete natal chart with planet placements, houses, aspects, and chart summary.
Compatibility Calculator
Compare two birth charts for synastry aspects and compatibility score.
Moon Phase Today
See today's moon phase, illumination, sign, and lunar guidance.
Retrograde Tracker
Check which planets are currently retrograde with shadow period guidance.
Augurine's astrology tools are powered by a high-precision astronomical computation engine built on NASA's ANISE toolkit. Every calculation is accurate to arc-second precision, giving you the same quality found in professional astrology software.