/api/astro/western/davison/1 creditDavison relationship chart
A real chart cast for the midpoint of two births. Different in kind from the composite at /api/astro/western/composite/, and the difference matters. A composite AVERAGES two charts' longitudes, producing midpoints that never existed in the sky. A Davison is an actual chart for an actual moment — the midpoint in time between two births, at the midpoint of the two places — so every planet in it was really there. That is why this endpoint needs the partner's coordinates and the composite does not. The place midpoint uses the shorter arc, so a London–Tokyo pair meets across Asia rather than across the Atlantic.
https://yogataraapi.prahlad.app/api/astro/western/davison/Authentication
Send your key in the X-API-Key header. Keys are server-side credentials — never put one in browser JavaScript or a mobile app.
X-API-Key: yt_live_a1b2c3d4_…
Content-Type: application/jsonRequest fields
| Field | Type | Required | Notes |
|---|---|---|---|
| date_time | string (date-time) | required | The moment to calculate for, ISO 8601. ALWAYS include an offset or a trailing Z - a value with no zone is read as Asia/Kolkata (UTC+05:30), not UTC, and can return the previous day's result with a 200. '2026-09-01T06:00:00Z' and '2026-09-01 06:00:00' are different instants and give different answers. |
| partner_date_time | string (date-time) | required | |
| partner_latitude | number (double) | required | min -90 · max 90 |
| partner_longitude | number (double) | required | min -180 · max 180 |
| keys | array | optional | Which calculations to return, as a list of names. See the key table for this endpoint; an unrecognised name rejects the whole request. One call costs one credit however many keys you ask for, so request everything you need at once rather than making several calls. |
| latitude | number (double) | optional | Latitude of the place, in decimal degrees. Positive is north, negative is south. Example: 26.9124 for Jaipur, 40.7128 for New York. Minutes and seconds are not accepted - convert first. |
| longitude | number (double) | optional | Longitude of the place, in decimal degrees. Positive is east, negative is west. Example: 75.7873 for Jaipur, -74.0060 for New York. Note the sign: a missing minus puts New York in China. |
| orb_factor | number (double) | optional | Scale every aspect orb. 0.5 halves them, 2 doubles them. min 0.1 · max 2 |
| partner_timezone_as_float | number (double) | optional | min -12 · max 14 |
| timezone_as_float | number (double) | optional | UTC offset of the place, in hours, as a decimal. Example: 5.5 for India (UTC+05:30), -5 for New York in winter, 5.75 for Nepal. This is NOT validated against date_time - if the two disagree you get a successful response for the wrong moment, so derive both from the same source. Use the offset in force on that date, not today's: a summer birth in a country with daylight saving needs the summer offset. min -12 · max 14 |
Example request
curl -X POST https://yogataraapi.prahlad.app/api/astro/western/davison/ \
-H "X-API-Key: $OCCULT_API_KEY" \
-H "Content-Type: application/json" \
-d '{"date_time":"1990-08-15T10:30:00+05:30","latitude":26.9124,"longitude":75.7873,"timezone_as_float":5.5,"partner_date_time":"1992-03-20T06:15:00+05:30","partner_latitude":19.076,"partner_longitude":72.8777}'Response
{
"_truncated": true,
"_note": "Response shortened for the catalogue.",
"preview": "{\"data\": {\"zodiac\": \"tropical\", \"midpoint_moment\": \"1991-06-02T14:52:30+00:00\", \"midpoint_place\": {\"latitude\": 22.9942, \"longitude\": 74.3325}, \"births\": [{\"date_time\": \"1990-08-15T05:00:00+00:00\", \"latitude\": 26.9124, \"longitude\": 75.7873}, {\"date_time\": \"1992-03-20T00:45:00+00:00\", \"latitude\": 19.076, \"longitude\": 72.8777}], \"planets\": [{\"name\": \"sun\", \"longitude\": 71.578229, \"speed\": 0.957929, \"retrograde\": false, \"sign\": \"Gemini\", \"sign_index\": 3, \"degree_in_sign\": 11.5782, \"formatted\": \"11°34' Gemini\"}, {\"name\": \"moon\", \"longitude\": 307.508426, \"speed\": 11.904364, \"retrograde\": false, \"sign\": \"Aquarius\", \"sign_index\": 11, \"degree_in_sign\": 7.5084, \"formatted\": \"7°30' Aquarius\"}, {\"name\": \"mercury\", \"longitude\": 55.300493, \"speed\": 1.847999, \"retrograde\": false, \"sign\": \"Taurus\", \"sign_index\": 2, \"degree_in_sign\": 25.3005, \"formatted\": \"25°18' Taurus\"}, {\"name\": \"venus\", \"longitude\": 116.50584, \"speed\": 1.027019, \"retrograde\": false, \"sign\": \"Cancer\", \"sign_index\": 4, \"degree_in_sign\": 26.5058, \"formatted\": \"26°30' Cancer\"}, {\"name\": \"mars\", \"longitude\": 124.170506, \"speed\": 0.589123, \"retrograde\": false, \"sign\": \"Leo\", \"sign_index\": 5, \"degree_in_sign\": 4.1705, \"formatted\": \"4°10' Leo\"}, {\"name\": \"jupiter\", \"longitude\": 129.253955, \"speed\": 0.160347, \"retrograde\": false, \"sign\": \"Leo\", \"sign_index\": 5, \"degree_in_sign\": 9.254, \"formatted\": \"9°15' Leo\"}, {\"name\": \"saturn\", \"longitude\": 306.624333, \"speed\": -0.026118, \"retrograde\": true, \"sign\": \"Aquarius\", \"sign_index\": 11, \"degree_in_sign\": 6.6243, \"formatted\": \"6°37' Aquarius\"}, {\"name\": \"uranus\", \"longitude\": 283.023713, \"speed\": -0.032335, \"retrograde\": true, \"sign\": \"Capricorn\", \"sign_index\": 10, \"degree_in_sign\": 13.0237, \"formatted\": \"13°01' Capricorn\"}, {\"name\": \"neptune\", \"longitude\": 286.263341, \"speed\": -0.02085, \"retrograde\": true, \"sign\": \"Capricorn\", \"sign_index\": 10, \"degree_in_sign\": 16.2633, \"formatted\": \"16°15' Capricorn\"}, {\"name\": \"pluto\", \"longitude\": 228.355561, \"speed\": -0.025097, \"retrograde\": true, \"sign\": \"Scorpio\", \"sign_index\": 8, \"degree_in_sign\": 18.3556, \"formatted\": \"18°21' Scorpio\"}, {\"name\": \"north_node\", \"longitude\": 289.391591, \"speed\": 0.02509, \"retrograde\": false, \"sign\": \"Capricorn\", \"sign_index\": 10, \"degree_in_sign\": 19.3916, \"formatted\": \"19°23' Capricorn\"}, {\"name\": \"chiron\", \"longitude\": 114.716336, \"speed\": 0.092952, \"retrograde\": false, \"sign\": \"Cancer\", \"sign_index\": 4, \"degree_in_sign\": 24.7163, \"formatted\": \"24°42' Cancer\"}], \"aspects\": [{\"body_1\": \"mercury\", \"body_2\": \"chiron\", \"aspect\": \"sextile\", \"exact_angle\": 60.0, \"orb\": 0.5842, \"allowed_orb\": 6.0, \"separation\": 59.4158}, {\"body_1\": \"moon\", \"body_2\": \"saturn\", \"aspect\": \"conjunction\", \"exact_angle\": 0.0, \"orb\": 0.8841, \"allowed_orb\": 8.0, \"separation\": 0.8841}, {\"body_1\": \"pluto\", \"body_2\": \"north_node\", \"aspect\": \"sextile\", \"exact_angle\": 60.0, \"orb\": 1.036, \"allowed_orb\": 6.0, \"separation\": 61.036}, {\"body_1\": \"mercury\", \"body_2\": \"venus\", \"aspect\": \"sextile\", \"exact_angle\": 60.0, \"orb\": 1.2053, \"allowed_orb\": 6.0, \"separation\": 61.2053}, {\"body_1\": \"sun\", \"body_2\": \"uranus\", \"aspect\": \"quincunx\", \"exact_angle\": 150.0, \"orb\": 1.4455, \"allowed_orb\": 3.0, \"separation\": 148.5545}, {\"body_1\": \"moon\", \"body_2\": \"jupiter\", \"aspect\": \"opposition\", \"exact_angle\": 180.0, \"orb\": 1.7455, \"allowed_orb\": 8.0, \"separation\": 178.2545}, {\"body_1\": \"venus\", \"body_2\": \"chiron\", \"aspect\": \"conjunction\", \"exact_angle\": 0.0, \"orb\": 1.7895, \"allowed_orb\": 8.0, \"separation\": 1.7895}, {\"body_1\": \"neptune\", \"body_2\": \"pluto\", \"aspect\": \"sextile\", \"exact_angle\": 60.0, \"orb\": 2.0922, \"allowed_orb\": 6.0, \"separation\": 57.9078}, {\"body_1\": \"sun\", \"body_2\": \"jupiter\", \"aspect\": \"sextile\", \"exact_angle\": 60.0, \"orb\": 2.3243, \"allowed_orb\": 6.0, \"separation\": 57.6757}, {\"body_1\": \"mars\", \"body_2\": \"saturn\", \"aspect\": \"opposition\", \"exact_angle\": 180.0, \"orb\": 2.4538, \"allowed_orb\": 8.0, \"separation\": 177.5462}, {\"body_1\": \"jupiter\", \"body_2\": \"saturn\", \"aspect\": \"opposition\", \"exact_angle\": 180.0, \""
}Captured from a real call using the exact request above. Results sit under data.
Errors
Metering errors return { "error": "…", "message": "<code>", "is_error": true }. Show error to people and branch on message. See the error reference.