POST/api/astro/fixed-star/parans/1 credit

Star and planet parans

Latitudes where a fixed star and a planet are on angles at the same moment. Parans are how Bernadette Brady's school reads fixed stars, and they catch a contact a longitude conjunction misses entirely: a star can be nowhere near a planet in the zodiac and still rise at the exact moment that planet culminates. Because the answer is a LATITUDE, it applies right around the globe at that latitude rather than at one place. Solved with the same geometry as /api/astro/astrocartography/parans/, with the star standing in for one of the bodies. Pairs of meridian lines are excluded: MC and IC lines are true meridians and never cross.

https://yogataraapi.prahlad.app/api/astro/fixed-star/parans/

Test Request

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/json

Request 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.
bodies	array	optional
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/parans/ \
  -H "X-API-Key: $OCCULT_API_KEY" \
  -H "Content-Type: application/json" \
  -d '{"date_time":"1990-05-10T19:55:00+05:30","timezone_as_float":5.5,"stars":["Regulus","Sirius","Aldebaran"],"bodies":["sun","moon","mars"]}'

Response

{
  "_truncated": true,
  "_note": "Response shortened for the catalogue.",
  "preview": "{\"data\": {\"julian_day_ut\": 2448022.10069444, \"stars_considered\": 3, \"count\": 30, \"parans\": [{\"star\": \"Aldebaran\", \"designation\": \"alTau\", \"magnitude\": 0.86, \"star_line\": \"IC\", \"body\": \"moon\", \"body_line\": \"DC\", \"latitude_deg\": 64.923938}, {\"star\": \"Sirius\", \"designation\": \"alCMa\", \"magnitude\": -1.46, \"star_line\": \"AC\", \"body\": \"sun\", \"body_line\": \"MC\", \"latitude_deg\": 62.975951}, {\"star\": \"Regulus\", \"designation\": \"alLeo\", \"magnitude\": 1.4, \"star_line\": \"DC\", \"body\": \"moon\", \"body_line\": \"DC\", \"latitude_deg\": 62.127117}, {\"star\": \"Sirius\", \"designation\": \"alCMa\", \"magnitude\": -1.46, \"star_line\": \"IC\", \"body\": \"sun\", \"body_line\": \"AC\", \"latitude_deg\": 61.589729}, {\"star\": \"Sirius\", \"designation\": \"alCMa\", \"magnitude\": -1.46, \"star_line\": \"IC\", \"body\": \"moon\", \"body_line\": \"DC\", \"latitude_deg\": 56.671965}, {\"star\": \"Sirius\", \"designation\": \"alCMa\", \"magnitude\": -1.46, \"star_line\": \"DC\", \"body\": \"sun\", \"body_line\": \"DC\", \"latitude_deg\": 55.724692}, {\"star\": \"Sirius\", \"designation\": \"alCMa\", \"magnitude\": -1.46, \"star_line\": \"DC\", \"body\": \"mars\", \"body_line\": \"IC\", \"latitude_deg\": 54.239126}, {\"star\": \"Aldebaran\", \"designation\": \"alTau\", \"magnitude\": 0.86, \"star_line\": \"DC\", \"body\": \"moon\", \"body_line\": \"AC\", \"latitude_deg\": 53.107724}, {\"star\": \"Regulus\", \"designation\": \"alLeo\", \"magnitude\": 1.4, \"star_line\": \"AC\", \"body\": \"sun\", \"body_line\": \"MC\", \"latitude_deg\": 50.110307}, {\"star\": \"Sirius\", \"designation\": \"alCMa\", \"magnitude\": -1.46, \"star_line\": \"DC\", \"body\": \"moon\", \"body_line\": \"AC\", \"latitude_deg\": 46.105875}, {\"star\": \"Aldebaran\", \"designation\": \"alTau\", \"magnitude\": 0.86, \"star_line\": \"MC\", \"body\": \"mars\", \"body_line\": \"DC\", \"latitude_deg\": 45.266728}, {\"star\": \"Regulus\", \"designation\": \"alLeo\", \"magnitude\": 1.4, \"star_line\": \"MC\", \"body\": \"sun\", \"body_line\": \"DC\", \"latitude_deg\": 38.661486}, {\"star\": \"Regulus\", \"designation\": \"alLeo\", \"magnitude\": 1.4, \"star_line\": \"AC\", \"body\": \"moon\", \"body_line\": \"IC\", \"latitude_deg\": 30.223657}, {\"star\": \"Aldebaran\", \"designation\": \"alTau\", \"magnitude\": 0.86, \"star_line\": \"DC\", \"body\": \"mars\", \"body_line\": \"IC\", \"latitude_deg\": 24.393792}, {\"star\": \"Regulus\", \"designation\": \"alLeo\", \"magnitude\": 1.4, \"star_line\": \"MC\", \"body\": \"moon\", \"body_line\": \"AC\", \"latitude_deg\": 15.27243}, {\"star\": \"Regulus\", \"designation\": \"alLeo\", \"magnitude\": 1.4, \"star_line\": \"IC\", \"body\": \"moon\", \"body_line\": \"DC\", \"latitude_deg\": -15.27243}, {\"star\": \"Aldebaran\", \"designation\": \"alTau\", \"magnitude\": 0.86, \"star_line\": \"AC\", \"body\": \"mars\", \"body_line\": \"MC\", \"latitude_deg\": -24.393792}, {\"star\": \"Regulus\", \"designation\": \"alLeo\", \"magnitude\": 1.4, \"star_line\": \"DC\", \"body\": \"moon\", \"body_line\": \"MC\", \"latitude_deg\": -30.223657}, {\"star\": \"Regulus\", \"designation\": \"alLeo\", \"magnitude\": 1.4, \"star_line\": \"IC\", \"body\": \"sun\", \"body_line\": \"AC\", \"latitude_deg\": -38.661486}, {\"star\": \"Aldebaran\", \"designation\": \"alTau\", \"magnitude\": 0.86, \"star_line\": \"IC\", \"body\": \"mars\", \"body_line\": \"AC\", \"latitude_deg\": -45.266728}, {\"star\": \"Sirius\", \"designation\": \"alCMa\", \"magnitude\": -1.46, \"star_line\": \"AC\", \"body\": \"moon\", \"body_line\": \"DC\", \"latitude_deg\": -46.105875}, {\"star\": \"Regulus\", \"designation\": \"alLeo\", \"magnitude\": 1.4, \"star_line\": \"DC\", \"body\": \"sun\", \"body_line\": \"IC\", \"latitude_deg\": -50.110307}, {\"star\": \"Aldebaran\", \"designation\": \"alTau\", \"magnitude\": 0.86, \"star_line\": \"AC\", \"body\": \"moon\", \"body_line\": \"DC\", \"latitude_deg\": -53.107724}, {\"star\": \"Sirius\", \"designation\": \"alCMa\", \"magnitude\": -1.46, \"star_line\": \"AC\", \"body\": \"mars\", \"body_line\": \"MC\", \"latitude_deg\": -54.239126}, {\"star\": \"Sirius\", \"designation\": \"alCMa\", \"magnitude\": -1.46, \"star_line\": \"AC\", \"body\": \"sun\", \"body_line\": \"AC\", \"latitude_deg\": -55.724692}, {\"star\": \"Sirius\", \"designation\": \"alCMa\", \"magnitude\": -1.46, \"star_line\": \"MC\", \"body\": \"moon\", \"body_line\": \"AC\", \"latitude_deg\": -56.671965}, {\"star\": \"Sirius\", \"designation\": \"alCMa\", \"magnitude\": -1.46, \"star_line\": \"MC\", \"body\": \"sun\", \"body_line\": \"DC\", \"latitude_deg\": "
}

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.