Western

Retrograde Tracker (行星逆行)

Is Mercury retrograde? All eight planets' motion from the ephemeris, stations bisected to the minute, and the full shadow-zone window — 2026 dates match the published calendars exactly.

Cost: 2 TIAN Points per call. tRPC procedure retrograde.track.

get/api/trpc/retrograde.track

Request

  • Base URL: https://api.asktian.com
  • URL: https://api.asktian.com/api/trpc/retrograde.track
  • Auth: HTTP bearer

Query parameters

inputstring

URL-encoded JSON of the procedure input (tRPC GET convention).

Response

tRPC result envelope

Changes

No recorded changes to this operation across all 1 revision of this API.