Star Visibility Calculator - Estimate how well the stars will be visible tonight from your location. Combine the Bortle light-pollution scale with cloud cover, humidity, and the Moon phase to get a 0-100 stargazing score, your naked-eye limiting magnitude, an estimate of how many stars you can see, and an animated live night-sky preview. Perfect for planning astrophotography, meteor showers, and dark-sky trips. New
Sun Position Calculator - New
Tide Time Calculator - New
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