Dates before 1582-10-15 use the Julian calendar. BCE dates are read as
local mean time at the site longitude — time zones did not exist yet. Range: 12999 BCE to 9999 CE.
Enter coordinates manually
Enter a date and location above, then Calculate, to see planetary positions.
Enter a date and location above, then Calculate, to see the chart wheel.
Find exact aspect perfectings: moments when the angular separation of
two bodies equals the target angle precisely (0° orb).
Find stations (moments a planet’s ecliptic-longitude speed crosses
zero) and the retrograde periods they bound.