Moon Phase (public, no key)

GET

/public/moon-phase

Code sample: cURL

request.sh

curl 'https://api.astroway.info/v1/public/moon-phase'

▸ Спробувати GET /public/moon-phase

• Production

Geocentric moon phase for a date (computed at noon UTC): deterministic, no AI, no birth data. _footer watermark. The English phaseName, moonSign and sunSign are the stable identifiers to match on and never change; localized carries the same three in the requested language.

Parameters

Query Parameters

date

string format: date

Calendar date YYYY-MM-DD (UTC). Defaults to today.

lang

string

Example

en

Language for this call, overriding Accept-Language. The canonical per-call form: a page that renders in one language passes it here rather than reconfiguring its client. Unknown or inactive codes fall back to uk.

fields

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.

Example

planets.name,planets.longitude

precision

integer

<= 15

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.

Example

4

Header Parameters

Accept-Language

string

BCP-47 language (e.g. uk, en, de). Set it once on your HTTP client as its default; for a single call, ?lang= overrides it. Unknown or inactive codes fall back to uk.

Responses

200

OK

Media type application/json

object

ok

boolean

data

object

date

string

nullable

phase

number

nullable

phaseName

string

nullable

majorPhase

string

nullable

illuminationPercent

number

nullable

elongationDeg

number

nullable

ageDays

number

nullable

waxing

boolean

nullable

moonSign

string

nullable

sunSign

string

nullable

localized

object

phaseName

string

nullable

moonSign

string

nullable

sunSign

string

nullable

_footer

Free-tier watermark, present on every public response. Keys on a paid plan do not receive it.

string

Example

{
  "ok": true,
  "data": {
    "date": "2026-08-21",
    "phase": 0.631254,
    "phaseName": "Waxing Gibbous",
    "majorPhase": "between",
    "illuminationPercent": 63.13,
    "elongationDeg": 105.2189,
    "ageDays": 8.631,
    "waxing": true,
    "moonSign": "Sagittarius",
    "sunSign": "Leo",
    "localized": {
      "phaseName": "Зростаюча опукла",
      "moonSign": "Стрілець",
      "sunSign": "Лев"
    }
  },
  "_footer": "Powered by astroway.api - get your own key at https://api.astroway.info"
}

400

Invalid sign or date

Media type application/json

Example

{
  "ok": false,
  "error": {
    "code": "INVALID_SIGN",
    "message": "sign must be one of the 12 zodiac signs"
  }
}