What is a relocation chart?
Your natal chart recalculated for the same moment of birth at a different location. The planets keep their signs, degrees and aspects; the Ascendant, Midheaven and house cusps move because they depend on where the horizon was. Astrologers read it as how your chart expresses itself in that place.
How is this different from astrocartography?
Astrocartography maps the lines on the globe where each planet would sit on an angle. A relocation chart is the full chart for one actual city, houses included. This calculator does the second: pick the cities you are really considering and see the whole chart in each, then use the astrocartography map for the world view.
What changes when I relocate my chart?
The Rising sign and degree, the Midheaven, all twelve house cusps and therefore which house each planet sits in. Any planet within a few degrees of a relocated angle becomes prominent in that place. Signs, degrees and aspects between planets never change.
Do I need my birth time?
Yes. Relocation moves the angles and houses, and those need the exact time. Without it the relocated chart would have placeholder angles, so the calculator asks for the time before comparing.
How many cities can I compare?
Up to three at once, beside your birthplace. Remove one and add another to keep exploring; each city is cast from the same instant with its own coordinates.