Features
Scientific astrology powered by real astronomical data, NASA satellite imagery, and AI personalization.
Birth Zenith
See the actual stars, galaxies, and nebulae directly overhead at the moment you were born. Cosmic Ascendant generates a personalized image from NASA WISE infrared satellite data for your specific birth coordinates. Every object in the image is automatically identified and cataloged with scientific classifications.
Learn about Birth ZenithBig Three Quiz
A 22-question personality quiz that predicts your Sun, Moon, and Rising signs from behavioral traits alone — no birth information required. Watch an interactive zodiac wheel heatmap update in real time as you answer. Free, no account needed.
Take the quizAI-Personalized Readings
Every reading is generated uniquely for you using large language models. Daily, weekly, and monthly transit readings are computed from your complete natal chart and current planetary positions — not pre-written text selected from a database.
Get your readingInteractive Chart Builder
A 7-stage progressive builder that teaches how your birth year, month, day, time, and location each affect chart accuracy. Watch animated uncertainty arcs narrow as you add information. Understand why birth time precision matters.
Build your chartUncertainty-Aware Natal Charts
Built on a custom astronomical engine using JPL DE430 ephemeris data — the same data NASA uses for spacecraft navigation. Charts include stability indicators that flag borderline placements and a precision resolution process to improve reliability.
Create your chart