Star Party Planner Calculator
Plan a star party by estimating sunset time, moon phase, visible planets, and observable deep-sky objects for your location and date.
Inputs
Results
Observable DSOs
56
Est. Sunset (24h)19.1 hr
Moon Illumination100%
Visible Planets3
How to Use This Calculator
- Enter Month (1-12), Latitude (°N), and Bortle Class (1-9).
- Review the Observable DSOs result.
- Use Est. Sunset (24h) (hr) and Moon Illumination (%) to inform your decision.
- Use the chart to visualize the results and explore different scenarios by adjusting inputs.
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