Astronomy API

aid: astronomy-api
name: Astronomy API
description: AstronomyAPI is a web API for retrieving astronomical information including data about celestial bodies, moon
  phases, planet positions, star charts, and astronomical events for a given location and time. The API provides developers
  with access to celestial body positions, astronomical event data, star chart generation, moon phase imagery, and deep space
  object search capabilities for any geographic location and date/time combination.
type: Index
accessModel:
  pricing: freemium
  onboarding: self-serve
  trial: false
  try_now: true
  public: false
  label: Freemium · Self-serve signup
  confidence: high
  source:
  - plans
  - authentication
  generated: '2026-07-22'
  method: derived
image: https://kinlane-images.s3.amazonaws.com/shared/apis-json/icons/astronomy-api.png
tags:
- Astronomy
- Celestial Data
- Space
- Moon Phases
- Star Charts
url: https://raw.githubusercontent.com/api-evangelist/astronomy-api/refs/heads/main/apis.yml
created: '2024-03-30'
modified: '2026-04-19'
specificationVersion: '0.19'
apis:
- aid: astronomy-api:astronomy-api
  name: Astronomy API
  description: The Astronomy API provides access to astronomical data including celestial body positions, moon phases, planet
    positions, star charts, astronomical events, and deep space object search for any location and time. Endpoints cover bodies,
    positions, events, studio image generation, star charts, moon phase imagery, and search for stars and deep space objects.
  humanURL: https://docs.astronomyapi.com/
  baseURL: https://api.astronomyapi.com/api/v2
  tags:
  - Astronomy
  - Moon
  - Planets
  - Star Charts
  properties:
  - type: Documentation
    url: https://docs.astronomyapi.com/
  - type: GettingStarted
    url: https://docs.astronomyapi.com/getting-started
- aid: astronomy-api:astronomy-api-bodies-api
  name: Astronomy API Bodies API
  description: Celestial body information and positions
  humanURL: https://docs.astronomyapi.com/
  baseURL: https://api.astronomyapi.com/api/v2
  tags:
  - Bodies
  properties:
  - type: OpenAPI
    url: openapi/astronomy-api-bodies-api-openapi.yml
- aid: astronomy-api:astronomy-api-events-api
  name: Astronomy API Events API
  description: Astronomical events for a given location and date range
  humanURL: https://docs.astronomyapi.com/
  baseURL: https://api.astronomyapi.com/api/v2
  tags:
  - Events
  properties:
  - type: OpenAPI
    url: openapi/astronomy-api-events-api-openapi.yml
- aid: astronomy-api:astronomy-api-search-api
  name: Astronomy API Search API
  description: Search for stars and deep space objects
  humanURL: https://docs.astronomyapi.com/
  baseURL: https://api.astronomyapi.com/api/v2
  tags:
  - Search
  properties:
  - type: OpenAPI
    url: openapi/astronomy-api-search-api-openapi.yml
- aid: astronomy-api:astronomy-api-studio-api
  name: Astronomy API Studio API
  description: Generated imagery (moon phase and star charts)
  humanURL: https://docs.astronomyapi.com/
  baseURL: https://api.astronomyapi.com/api/v2
  tags:
  - Studio
  properties:
  - type: OpenAPI
    url: openapi/astronomy-api-studio-api-openapi.yml
common:
- type: AgenticAccess
  url: agentic-access/astronomy-api-agentic-access.yml
- type: DomainSecurity
  url: security/astronomy-api-domain-security.yml
- type: Authentication
  url: authentication/astronomy-api-authentication.yml
- type: GitHubOrganization
  url: https://github.com/AstronomyAPI
- type: Portal
  url: https://astronomyapi.com/
  title: Astronomy API Website
- type: Documentation
  url: https://docs.astronomyapi.com/
  title: Documentation
- type: Signup
  url: https://astronomyapi.com/auth/signup
  title: Sign Up
- type: Pricing
  url: https://astronomyapi.com/pricing
  title: Pricing
- type: Features
  data:
  - name: Celestial Body Positions
    description: Retrieve real-time and historical positions of celestial bodies including planets, moons, and other astronomical
      objects for any geographic location and date/time.
  - name: Astronomical Events
    description: Access data on celestial events such as eclipses, conjunctions, and other notable astronomical occurrences
      for a given body and date range.
  - name: Star Chart Generation
    description: Generate customizable star charts as images for any sky position, date, and observer location for use in
      applications and publications.
  - name: Moon Phase Imagery
    description: Generate moon phase images showing the illumination and appearance of the moon for any given date and location.
  - name: Deep Space Object Search
    description: Search for stars and deep space objects by name or catalog designation to retrieve positional and descriptive
      data.
- type: UseCases
  data:
  - name: Astronomy Education Apps
    description: Developers build educational astronomy applications that display real-time planet positions, star charts,
      and moon phases for learners and enthusiasts.
  - name: Observation Planning Tools
    description: Amateur astronomers use the API to plan observing sessions by retrieving celestial body positions and upcoming
      astronomical events for their location.
  - name: Astrology and Horoscope Applications
    description: Astrology apps integrate the Astronomy API for accurate planetary position data to power birth chart calculations
      and transit predictions.
- type: Integrations
  data:
  - name: Mobile Astronomy Apps
    description: Mobile applications integrate the Astronomy API to provide real-time sky data and star chart overlays for
      stargazing experiences.
  - name: Planetarium Software
    description: Planetarium and sky simulation software integrates celestial body position data from the Astronomy API for
      accurate sky rendering.
- type: LlmsText
  url: https://astronomyapi.com/llms.txt
maintainers:
- FN: Kin Lane
  email: kin@apievangelist.com