/api/astro/fixed-star/positions/1 creditFixed star positions
Where named fixed stars sit at a given moment: tropical longitude with sign and degree, ecliptic latitude, and equatorial coordinates. Fixed stars are not fixed. They precess about a degree every 72 years, so a position quoted without a date is meaningless — Regulus left Leo for Virgo in 2012 and now sits at 0 Virgo. Choose stars by name, or use a preset: `behenian` for the fifteen stars of medieval magic, `major` for the set astrologers actually work with, `brightest` for everything above magnitude 1.5, or `all`.
https://yogataraapi.prahlad.app/api/astro/fixed-star/positions/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. |
| max_magnitude | number (double) | optional | Keep stars at least this bright. Lower numbers are brighter. |
| preset | string | optional | major (default), behenian, brightest, or all. majorbehenianbrightestall |
| stars | array | optional | Star names. Overrides `preset` when given. |
| 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/fixed-star/positions/ \
-H "X-API-Key: $OCCULT_API_KEY" \
-H "Content-Type: application/json" \
-d '{"date_time":"2026-01-01T00:00:00+00:00","timezone_as_float":0,"preset":"behenian"}'Response
{
"_truncated": true,
"_note": "Response shortened for the catalogue.",
"preview": "{\"data\": {\"julian_day_ut\": 2461041.5, \"count\": 15, \"stars\": [{\"star\": \"Algol\", \"designation\": \"bePer\", \"aliases\": [], \"magnitude\": 2.12, \"longitude\": 56.536133, \"latitude\": 22.433032, \"right_ascension_deg\": 47.472908, \"declination_deg\": 41.058602, \"sign\": \"Taurus\", \"sign_index\": 2, \"degree_in_sign\": 26.5361}, {\"star\": \"Alcyone\", \"designation\": \"etTau\", \"aliases\": [\"Krttika\"], \"magnitude\": 2.87, \"longitude\": 60.361502, \"latitude\": 4.053961, \"right_ascension_deg\": 57.264611, \"declination_deg\": 24.186925, \"sign\": \"Gemini\", \"sign_index\": 3, \"degree_in_sign\": 0.3615}, {\"star\": \"Aldebaran\", \"designation\": \"alTau\", \"aliases\": [\"Rohini\"], \"magnitude\": 0.86, \"longitude\": 70.159252, \"latitude\": -5.465739, \"right_ascension_deg\": 69.360424, \"declination_deg\": 16.562139, \"sign\": \"Gemini\", \"sign_index\": 3, \"degree_in_sign\": 10.1593}, {\"star\": \"Capella\", \"designation\": \"alAur\", \"aliases\": [\"Brahmahridaya\"], \"magnitude\": 0.08, \"longitude\": 82.228827, \"latitude\": 22.865264, \"right_ascension_deg\": 79.662975, \"declination_deg\": 46.024947, \"sign\": \"Gemini\", \"sign_index\": 3, \"degree_in_sign\": 22.2288}, {\"star\": \"Sirius\", \"designation\": \"alCMa\", \"aliases\": [\"Lubdhaka\"], \"magnitude\": -1.46, \"longitude\": 104.449025, \"latitude\": -39.611041, \"right_ascension_deg\": 101.580591, \"declination_deg\": -16.751976, \"sign\": \"Cancer\", \"sign_index\": 4, \"degree_in_sign\": 14.449}, {\"star\": \"Procyon\", \"designation\": \"alCMi\", \"aliases\": [], \"magnitude\": 0.37, \"longitude\": 116.15164, \"latitude\": -16.024563, \"right_ascension_deg\": 115.172471, \"declination_deg\": 5.157534, \"sign\": \"Cancer\", \"sign_index\": 4, \"degree_in_sign\": 26.1516}, {\"star\": \"Regulus\", \"designation\": \"alLeo\", \"aliases\": [\"Magha\"], \"magnitude\": 1.4, \"longitude\": 150.195942, \"latitude\": 0.465653, \"right_ascension_deg\": 152.443892, \"declination_deg\": 11.838288, \"sign\": \"Virgo\", \"sign_index\": 6, \"degree_in_sign\": 0.1959}, {\"star\": \"Alkaid\", \"designation\": \"etUMa\", \"aliases\": [\"Benetnash\", \"Marichi\"], \"magnitude\": 1.86, \"longitude\": 177.303862, \"latitude\": 54.382669, \"right_ascension_deg\": 207.141406, \"declination_deg\": 49.178214, \"sign\": \"Virgo\", \"sign_index\": 6, \"degree_in_sign\": 27.3039}, {\"star\": \"Algorab\", \"designation\": \"deCrv\", \"aliases\": [\"Hasta\"], \"magnitude\": 2.94, \"longitude\": 193.814427, \"latitude\": -12.197686, \"right_ascension_deg\": 187.804295, \"declination_deg\": -16.65954, \"sign\": \"Libra\", \"sign_index\": 7, \"degree_in_sign\": 13.8144}, {\"star\": \"Spica\", \"designation\": \"alVir\", \"aliases\": [\"Citra\"], \"magnitude\": 0.97, \"longitude\": 204.204413, \"latitude\": -2.056252, \"right_ascension_deg\": 201.641386, \"declination_deg\": -11.296925, \"sign\": \"Libra\", \"sign_index\": 7, \"degree_in_sign\": 24.2044}, {\"star\": \"Arcturus\", \"designation\": \"alBoo\", \"aliases\": [\"Svati\"], \"magnitude\": -0.05, \"longitude\": 204.596472, \"latitude\": 30.715328, \"right_ascension_deg\": 214.211389, \"declination_deg\": 19.044179, \"sign\": \"Libra\", \"sign_index\": 7, \"degree_in_sign\": 24.5965}, {\"star\": \"Alphecca\", \"designation\": \"alCrB\", \"aliases\": [\"Alphekka\", \"Gemma\"], \"magnitude\": 2.24, \"longitude\": 222.659925, \"latitude\": 44.317277, \"right_ascension_deg\": 233.944688, \"declination_deg\": 26.624185, \"sign\": \"Scorpio\", \"sign_index\": 8, \"degree_in_sign\": 12.6599}, {\"star\": \"Antares\", \"designation\": \"alSco\", \"aliases\": [\"Jyeshtha\"], \"magnitude\": 0.91, \"longitude\": 250.121879, \"latitude\": -4.573175, \"right_ascension_deg\": 247.747294, \"declination_deg\": -26.48875, \"sign\": \"Sagittarius\", \"sign_index\": 9, \"degree_in_sign\": 10.1219}, {\"star\": \"Vega\", \"designation\": \"alLyr\", \"aliases\": [\"Abhijit\"], \"magnitude\": 0.03, \"longitude\": 285.670356, \"latitude\": 61.731946, \"right_ascension_deg\": 279.448124, \"declination_deg\": 38.806772, \"sign\": \"Capricorn\", \"sign_index\": 10, \"degree_in_sign\": 15.6704}, {\"star\": \"Deneb Algedi\", \"designation\": \"deCap\", \"aliases\": [], \"magnitude\": 2.83, \"longitude\": 323.904246, \"latitude\": -2.606273, \"right_ascension_deg\": 327.11596, \"declination_deg\": -16.010421, \"sign\": \"Aquarius\", \"sign_index\": 11, \"degree_in_sign\": 23.9042}]}"
}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.