Glossary
Astrocartography
A birth chart is calculated for a moment and a place. Move the place and the same moment produces a different chart — planets that were rising in one city were setting in another. Astrocartography works through every location on earth and draws lines where each planet would have been exactly rising, setting, culminating, or anti-culminating at your birth moment.
The result is a personal map: near a line, the side of life that planet describes tends to be emphasized. Living near it is the strongest expression; visiting gives a taste. The technique dates to the mid-20th century, popularized by the astrologer Jim Lewis, and is the foundation everything on this site builds on.