Relocation Chart API

The relocation endpoint computes the natal chart from the supplied birth data, then recasts the house framework for a second location while leaving the planetary positions untouched. The planets keep their born-with signs and degrees — they are a function of the moment, not the place — but the Ascendant, Midheaven, and all house cusps are recomputed from the target latitude and longitude, which reassigns every planet to a new house. The response returns both the original natal chart and the relocated chart side by side, plus a delta object reporting how far the angles moved: ascendantShift and mcShift. That delta quantifies how strongly the relocation reshapes the chart's emphasis — a large shift means the houses, and therefore the areas of life a planet activates, change substantially even though the planets themselves have not budged.

curl -X POST https://api.astroway.info/v1/relocation \
  -H "X-Api-Key: aw_live_..." \
  -H "Content-Type: application/json" \
  -d '{
  "natal": {
    "date": "1990-05-15",
    "time": "14:30:00",
    "timezoneOffset": 3,
    "latitude": 50.45,
    "longitude": 30.52
  },
  "target": {
    "latitude": 40.71,
    "longitude": -74.01,
    "city": "New York"
  }
}'

{
  "ok": true,
  "data": {
    "natal": {
      "houses": {
        "ascendant": 160.4,
        "mc": 70.1
      }
    },
    "relocated": {
      "houses": {
        "ascendant": 243.8,
        "mc": 152.6
      }
    },
    "delta": {
      "ascendantShift": 83.4,
      "mcShift": 82.5
    }
  }
}

Use the relocation chart for astrocartography-adjacent questions — 'how would my chart read if I lived in this city', a relocation report for someone considering a move, or a travel feature that shows which houses light up at a destination. It is the natural call whenever location matters but the birth data is fixed: the planetary makeup stays constant, only the angular and house emphasis shifts. Returning both charts and the angle delta in one response lets you present a before-and-after directly, and the delta makes it easy to flag relocations that barely change anything versus those that swing the Ascendant or Midheaven by a sign or more. Feed the relocated houses into interpretation to describe how a place changes the felt emphasis of the same nativity.

Only the house framework is relocated; planetary longitudes, signs, and inter-planet aspects are identical to the natal chart because they depend on the birth moment, not the place. The response carries both charts plus a delta {ascendantShift, mcShift} so you can measure the angular movement. The target accepts an optional city label for display. Houses follow your chosen system; tropical zodiac and Swiss Ephemeris throughout.