---
title: "Changes to Retrograde Periods"
method: POST
path: "/retrograde-periods"
---

# Changes to Retrograde Periods

`POST /retrograde-periods`

> Every recorded change to this endpoint, newest first.

## Timeline

Changed in 2 of 13 revisions.

- **2026-08-24** `8ab5a768b521` — 6 warning, 6 info
- **2026-08-23** `6828e5609564` — 1 breaking, 1 warning

## Changes

- **2026-08-24** `8ab5a768b521` — 6 warning, 6 info
  - removed the optional property `data/periods/items/directLongitude` from the response with the `200` status
  - removed the optional property `data/periods/items/directStation` from the response with the `200` status
  - removed the optional property `data/periods/items/retrogradStation` from the response with the `200` status
  - removed the optional property `data/periods/items/retrogradeLongitude` from the response with the `200` status
  - removed the optional property `data/periods/items/shadowEntry` from the response with the `200` status
  - removed the optional property `data/periods/items/shadowExit` from the response with the `200` status
  - added the optional property `data/periods/items/planetId` to the response with the `200` status
  - added the optional property `data/periods/items/planetName` to the response with the `200` status
  - added the optional property `data/periods/items/retroEnd` to the response with the `200` status
  - added the optional property `data/periods/items/retroStart` to the response with the `200` status
  - added the optional property `data/periods/items/stationDirectLong` to the response with the `200` status
  - added the optional property `data/periods/items/stationRetroLong` to the response with the `200` status
- **2026-08-23** `6828e5609564` — 1 breaking, 1 warning
  - the `planetIds/items/` request property type/format changed from `number`/`` to `integer`/``
  - the `planetIds/items/` request property's min was set to `0.00`

---

[Operation](https://skmtc.dev/astroway/apis/astroway-calculation-api/docs/retrograde-periods/post.md) · [API](https://skmtc.dev/astroway/apis/astroway-calculation-api.md) · [Page](https://skmtc.dev/astroway/apis/astroway-calculation-api/changes/retrograde-periods/post)