---
title: "Decans"
method: GET
path: "/reference/decans"
tags: ["Reference"]
---

# Decans

`GET /reference/decans`

Reference list of the 36 decans (10° divisions) with Egyptian Chaldean ruler, modern triplicity ruler, classical face ruler, and Liber Hermetis decanic deity name where attested.

## Response `200`

Successful calculation

- object
  - `ok` boolean
  - `data` object
    - `items` object[], nullable
      - `number` number, nullable
      - `sign` string, nullable
      - `decanInSign` number, nullable
      - `startDegree` number, nullable
      - `endDegree` number, nullable
      - `egyptianRuler` string, nullable
      - `modernRuler` string, nullable
      - `faceRuler` string, nullable
    - `count` number, nullable

## Other responses

- `400` — Validation error
- `401` — Missing or invalid API key

---

[API](https://skmtc.net/astroway/apis/astroway-calculation-api.md) · [All operations](https://skmtc.net/astroway/apis/astroway-calculation-api/llms.txt) · [OpenAPI document](https://skmtc-service-staging.skmtc.workers.dev/v1/apis/astroway/astroway-calculation-api/revisions/529d7d36d7d6/schema)