# Stream Planetary Hour Changes

`POST https://api.astroway.info/v1/stream/planetary-hour-changes`

Current planetary hour + next 24.

Group: Real-time Streaming. Auth: `X-Api-Key` header. Operation ID: `stream_planetary-hour-changes`.

## Parameters

| Name | In | Required | Type | Description |
|---|---|---|---|---|
| `fields` | query | no | string | Comma-separated dotted paths, relative to `data`, to keep in the response. A path is applied to every element of an array, so `planets.name` means the name of each planet. Paths that match nothing come back in `_fields_unmatched`; a list where nothing matches at all is a 400, because an empty object would be a confident wrong answer. |
| `precision` | query | no | integer | Round every non-integer number in the response to this many decimal places. Integers are left alone, because an id is not a measurement. Ecliptic longitudes ship with fourteen decimals by default; 2 is about a tenth of an arcminute. |

## Request body

| Field | Type | Required | Description |
|---|---|---|---|
| `latitude` | number | yes |  |
| `longitude` | number | yes |  |
| `timezoneOffset` | number | no | Hours from UTC at the given moment, not minutes. Fractional zones are hours too: 5.5 for India, 5.75 for Nepal, -3.5 for Newfoundland. Defaults to 0, meaning UTC. |

```json
{
  "latitude": 50.45,
  "longitude": 30.52,
  "timezoneOffset": 3
}
```

## Responses

| Status | Meaning |
|---|---|
| 200 | Successful calculation |
| 400 | Validation error |
| 401 | Missing or invalid API key |

### Success fields, under `data`

| Field | Type | Required | Description |
|---|---|---|---|
| `timestamp` | string | no |  |
| `current` | object | no |  |
| `current.ruler` | string | no |  |
| `current.kind` | string | no |  |
| `current.startAt` | string | no |  |
| `next` | object | no |  |
| `next.ruler` | string | no |  |
| `next.kind` | string | no |  |
| `next.startAt` | string | no |  |
| `next24Hours` | object[] | no |  |
| `nextEventAt` | string | no |  |
| `tickSeconds` | number | no |  |
| `transport` | string | no |  |
| `sseUpgrade` | string | no |  |
| `pricing` | string | no |  |

## Example

```bash
curl -X POST https://api.astroway.info/v1/stream/planetary-hour-changes \
  -H "X-Api-Key: aw_live_..." \
  -H "Content-Type: application/json" \
  -d '{ "latitude": 50.45, "longitude": 30.52, "timezoneOffset": 3 }'
```

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