How to Plan Around Moon Phases with Claude
Get moon phases and sun times with Claude and ToolRouter. Moonrise, moonset, sunrise, and sunset for any location.
Tool
Claude combines moon phase and sun times data with your specific activity to produce precise timing recommendations — when to be at the viewpoint for the perfect moonrise shot, which nights this month suit astrophotography, or how many hours of true darkness you'll have before the moon rises and washes out the sky.
Connect ToolRouter to Claude
1Open connector settings Open Settings
2Add a custom connector with these details
Name
ToolRouterURL
https://api.toolrouter.com/mcp3Let Claude set you up Open Claude
Steps
Once connected (see setup above), use the Night Sky tool:
- Ask: "Get moon phase and sun/moon times for Edinburgh for this week using night-sky"
- Claude returns phase percentage, moonrise/set, and sunrise/set for each day
- Ask: "Which nights this week are best for astrophotography?"
- Request: "When exactly will the full moon rise above the horizon on Friday?"
Example Prompt
Try this with Claude using the Night Sky tool
Get moon phase and sunrise/moonrise times for London for the next 14 days. Identify the three best nights for astrophotography based on darkness and moon position.
Tips
- For astrophotography, look for nights where the moon rises after midnight — giving dark skies for the first half of the night
- Ask about astronomical twilight end time — the point at which the sky is truly dark
- Request percentage illumination rather than just phase name for precise brightness assessment