/api/astro/western/antiscia/1 creditAntiscia and contra-antiscia
The hidden points of a chart: reflections across the solstice axis. An antiscion is a planet reflected across the 0 Cancer – 0 Capricorn line, so a planet and its antiscion share the same DECLINATION and, in the old doctrine, a hidden sympathy. The contra-antiscion reflects across the equinoctial axis instead and is read as antipathy. antiscion = 180 − longitude; contra-antiscion = 360 − longitude. Contacts are what the technique is for — a planet sitting on another's antiscion is a connection invisible in an ordinary aspect grid — so those are computed against Lilly's tight orb of about a degree, scalable with `orb_factor`.
https://yogataraapi.prahlad.app/api/astro/western/antiscia/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. |
| 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 |
| 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/antiscia/ \
-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}'Response
{
"_truncated": true,
"_note": "Response shortened for the catalogue.",
"preview": "{\"data\": {\"zodiac\": \"tropical\", \"axis\": \"0 Cancer - 0 Capricorn (solstitial)\", \"note\": \"antiscion = 180 - longitude; contra-antiscion = 360 - longitude. A planet and its antiscion share a declination.\", \"antiscia\": [{\"name\": \"sun\", \"natal_longitude\": 142.125097, \"longitude\": 37.874903, \"speed\": 0.960934, \"retrograde\": false, \"sign\": \"Taurus\", \"sign_index\": 2, \"degree_in_sign\": 7.8749, \"formatted\": \"7°52' Taurus\"}, {\"name\": \"moon\", \"natal_longitude\": 72.660043, \"longitude\": 107.339957, \"speed\": 14.262958, \"retrograde\": false, \"sign\": \"Cancer\", \"sign_index\": 4, \"degree_in_sign\": 17.34, \"formatted\": \"17°20' Cancer\"}, {\"name\": \"mercury\", \"natal_longitude\": 169.176074, \"longitude\": 10.823926, \"speed\": 0.776615, \"retrograde\": false, \"sign\": \"Aries\", \"sign_index\": 1, \"degree_in_sign\": 10.8239, \"formatted\": \"10°49' Aries\"}, {\"name\": \"venus\", \"natal_longitude\": 121.572681, \"longitude\": 58.427319, \"speed\": 1.22118, \"retrograde\": false, \"sign\": \"Taurus\", \"sign_index\": 2, \"degree_in_sign\": 28.4273, \"formatted\": \"28°25' Taurus\"}, {\"name\": \"mars\", \"natal_longitude\": 51.217023, \"longitude\": 128.782977, \"speed\": 0.576982, \"retrograde\": false, \"sign\": \"Leo\", \"sign_index\": 5, \"degree_in_sign\": 8.783, \"formatted\": \"8°46' Leo\"}, {\"name\": \"jupiter\", \"natal_longitude\": 119.336805, \"longitude\": 60.663195, \"speed\": 0.214649, \"retrograde\": false, \"sign\": \"Gemini\", \"sign_index\": 3, \"degree_in_sign\": 0.6632, \"formatted\": \"0°39' Gemini\"}, {\"name\": \"saturn\", \"natal_longitude\": 289.878035, \"longitude\": 250.121965, \"speed\": -0.056381, \"retrograde\": true, \"sign\": \"Sagittarius\", \"sign_index\": 9, \"degree_in_sign\": 10.122, \"formatted\": \"10°07' Sagittarius\"}, {\"name\": \"uranus\", \"natal_longitude\": 275.978113, \"longitude\": 264.021887, \"speed\": -0.023775, \"retrograde\": true, \"sign\": \"Sagittarius\", \"sign_index\": 9, \"degree_in_sign\": 24.0219, \"formatted\": \"24°01' Sagittarius\"}, {\"name\": \"neptune\", \"natal_longitude\": 282.198866, \"longitude\": 257.801134, \"speed\": -0.019063, \"retrograde\": true, \"sign\": \"Sagittarius\", \"sign_index\": 9, \"degree_in_sign\": 17.8011, \"formatted\": \"17°48' Sagittarius\"}, {\"name\": \"pluto\", \"natal_longitude\": 225.084319, \"longitude\": 314.915681, \"speed\": 0.011469, \"retrograde\": false, \"sign\": \"Aquarius\", \"sign_index\": 11, \"degree_in_sign\": 14.9157, \"formatted\": \"14°54' Aquarius\"}, {\"name\": \"north_node\", \"natal_longitude\": 307.233496, \"longitude\": 232.766504, \"speed\": 0.014476, \"retrograde\": false, \"sign\": \"Scorpio\", \"sign_index\": 8, \"degree_in_sign\": 22.7665, \"formatted\": \"22°45' Scorpio\"}, {\"name\": \"chiron\", \"natal_longitude\": 112.437645, \"longitude\": 67.562355, \"speed\": 0.099053, \"retrograde\": false, \"sign\": \"Gemini\", \"sign_index\": 3, \"degree_in_sign\": 7.5624, \"formatted\": \"7°33' Gemini\"}], \"contra_antiscia\": [{\"name\": \"sun\", \"natal_longitude\": 142.125097, \"longitude\": 217.874903, \"speed\": 0.960934, \"retrograde\": false, \"sign\": \"Scorpio\", \"sign_index\": 8, \"degree_in_sign\": 7.8749, \"formatted\": \"7°52' Scorpio\"}, {\"name\": \"moon\", \"natal_longitude\": 72.660043, \"longitude\": 287.339957, \"speed\": 14.262958, \"retrograde\": false, \"sign\": \"Capricorn\", \"sign_index\": 10, \"degree_in_sign\": 17.34, \"formatted\": \"17°20' Capricorn\"}, {\"name\": \"mercury\", \"natal_longitude\": 169.176074, \"longitude\": 190.823926, \"speed\": 0.776615, \"retrograde\": false, \"sign\": \"Libra\", \"sign_index\": 7, \"degree_in_sign\": 10.8239, \"formatted\": \"10°49' Libra\"}, {\"name\": \"venus\", \"natal_longitude\": 121.572681, \"longitude\": 238.427319, \"speed\": 1.22118, \"retrograde\": false, \"sign\": \"Scorpio\", \"sign_index\": 8, \"degree_in_sign\": 28.4273, \"formatted\": \"28°25' Scorpio\"}, {\"name\": \"mars\", \"natal_longitude\": 51.217023, \"longitude\": 308.782977, \"speed\": 0.576982, \"retrograde\": false, \"sign\": \"Aquarius\", \"sign_index\": 11, \"degree_in_sign\": 8.783, \"formatted\": \"8°46' Aquarius\"}, {\"name\": \"jupiter\", \"natal_longitude\": 119.336805, \"longitude\": 240.663195, \"speed\": 0.214649, \"retrograde\": false, \"sign\": \"Sagittarius\", \"sign_index\": 9, \"degree_in_sign\": 0.6632, \"formatted\": \"0°39' Sagittarius\"}, {\"na"
}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.