# CycleCalcs Astronomy

> CycleCalcs Astronomy — com-cyclecalcs-astronomy. Use this tool when you need to calculate celestial body positions, eclipses, and twilight times. It solves problems related to astronomy, such as determining sun, moon, planet, and star positions, as well as predicting eclipses and twilight events. With inputs including date, time, and location, it outputs precise calculations for various astronomical phenomena.

Canonical page: https://skillsregistry.net/skills/com-cyclecalcs-astronomy  
JSON: https://api.skillsregistry.net/v1/skills/com-cyclecalcs-astronomy

## Description

Astronomy: sun, moon, planet, eclipse, twilight and star position calculations.

## Trust

- **Trust score (0–1):** 0.30
- **Verification tier:** unverified
- **Last scanned:** 2026-09-02

## Facts

- **Version:** 1.0.0
- **Skill type:** atomic
- **Execution layer:** mcp-remote
- **Runtime environment:** api
- **Category:** other
- **Updated:** 2026-09-02

## Source

- **Source listing:** [MCP Registry](https://registry.modelcontextprotocol.io/v0/servers/com.cyclecalcs%2Fastronomy)

## Use it

MCP endpoint published by the skill: `https://www.cyclecalcs.com/mcp`

Resolve this record through the SkillsRegistry MCP server (no auth, read-only):

```
claude mcp add --transport http --scope user skillsregistry https://api.skillsregistry.net/mcp
```

```json
{
  "jsonrpc": "2.0",
  "id": 1,
  "method": "tools/call",
  "params": {
    "name": "get_skill",
    "arguments": {
      "slug": "com-cyclecalcs-astronomy"
    }
  }
}
```

REST: `GET https://api.skillsregistry.net/v1/skills/com-cyclecalcs-astronomy` · pull for local use: `GET https://api.skillsregistry.net/v1/skills/com-cyclecalcs-astronomy/pull`

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SkillsRegistry indexes agent skills from public registries and GitHub. Skills we have analysed are scanned with Circle-IR and scored on six dimensions; each listing states its scan coverage. More: https://skillsregistry.net/llms.txt