get_retrograde_periods
Read-onlyIdempotent
Find retrograde periods by planet and year: “when is Mercury retrograde in 2027”, “quando è Mercurio retrogrado”. Mercury through Pluto, 1900–2099; includes stations, pre/post shadows and uncertainty windows. A station estimate is not an exact-to-the-second fact. No birth data is stored or logged, including request bodies, queries, access logs, stats and errors.
Input Schema
TableJSON Schema
| Name | Required | Description | Default |
|---|---|---|---|
| lang | No | Language code. Published: en, it. Other codes fall back to English with a language.note. | en |
| year | Yes | ||
| planet | Yes |
Output Schema
TableJSON Schema
| Name | Required | Description | Default |
|---|---|---|---|
| url | Yes | ||
| error | Yes | ||
| result | Yes | ||
| source | Yes |