Cast a natal chart

Enter your birth date, time and birthplace: the chart restores the UTC instant, takes ten planetary longitudes from the ephemeris, and solves the Ascendant, Midheaven and twelve houses.

Which part first?

The topic decides which area the reading opens with and how the themes are ordered. It never enters the calculation.

What do you most want to see clearly?

Pick the closest one, or write it in your own words. Once the chart is cast, the reading answers it against your chart; leave it empty to read the chart as a whole.

Birth details

The Ascendant and houses come from the birth instant plus coordinates: 4 minutes of clock error moves the Ascendant about 1°

Linked timezone Asia/Shanghai · Longitude 116.4074° · Latitude 39.9075°

Astrology restores the UT instant from the recorded clock time (including historical offsets and DST), then uses latitude and longitude for the Ascendant and houses. Accuracy matters: the Ascendant moves about 1° every 4 minutes.