
NASA-Grade Planetary Calculations
Astrocartography Calculator uses Swiss Ephemeris, the astronomical standard matching NASA planetary data. We calculate where each planet (Sun, Moon, Venus, Mars, Jupiter, Saturn) was angular—rising (ASC), setting (DSC), culminating (MC), or at nadir (IC)—at your exact birth moment across Earth's surface. Each astrocartography line is accurate to within 1 mile, ensuring your astrocartography chart matches professional astrologer calculations. When you stand on a planetary line, that planet's energy dominates your experience there.
