Western Astrology

Western Solar Arc Directions

Solar Arc Directions for a target date. The solar arc (progressed Sun - natal Sun) is applied uniformly to every natal planet and angle. Unlike secondary progressions, all planets advance at the same rate (~1° per year). Returns directed positions for all 10 planets plus directed MC and ASC.

post/v1/western/progressions/solar-arc

Request

  • Base URL: https://api.asterwise.com
  • URL: https://api.asterwise.com/v1/western/progressions/solar-arc
  • Auth: HTTP bearer

Request body

locationstring nullable

City name to resolve to lat/lon/tz automatically. Example: 'Mumbai' or 'New Delhi, India'. If provided, latitude, longitude and timezone are not required.

namestring

Person name associated with the birth record

datestring required

Birth date in YYYY-MM-DD format

timestring nullable

Birth time in HH:MM 24-hour format. If omitted, the chart is cast for 06:00 local time (not a sunrise chart) and birth_time_provided is false: houses, the Ascendant, the sect and the Moon's exact degree are then approximate.

latitudenumber nullable

Latitude. Required if location not provided.

longitudenumber nullable

Longitude. Required if location not provided.

timezonestring nullable

IANA timezone. Required if location not provided (unless utc_offset is given). For dates before the zone adopted a standard time, the birthplace's local mean time (longitude / 15 hours) is used.

utc_offsetstring nullable

Optional explicit UTC offset of the birth time, as ±HH:MM or ±HH:MM:SS (e.g. '+04:51:31' for Bombay mean time). Overrides the offset timezone would give. Use it when the birth record states the offset, or for historical local times the IANA database cannot represent.

ayanamsa'lahiri' | 'raman' | 'kp' | 'tropical'

Ignored on Western endpoints: positions are always tropical (no ayanamsa). Accepted so one birth object can be sent to Vedic and Western endpoints alike.

target_datestring nullable

Target date for progressions YYYY-MM-DD. Defaults to today.

Example request

{
  "ayanamsa": "lahiri",
  "date": "1985-11-12",
  "latitude": 19.055,
  "location": "Mumbai",
  "longitude": 72.8692,
  "name": "Arjun Mehta",
  "time": "06:45",
  "timezone": "Asia/Kolkata"
}

Response

Successful Response

successboolean

True if the request succeeded

messagestring

Human-readable status message

Changes

No recorded changes to this operation across all 2 revisions of this API.