You're Missing 90% of the Stars
Light pollution hides thousands of stars. From the average suburb, you can only see about 50 stars. Under truly dark skies? Over 15,000. The difference is life-changing.
See what you're missing near youEverything You Need
Professional-grade tools for astronomers, photographers, and stargazers.
Satellite Light Pollution Map
Visualize global light pollution with NASA VIIRS satellite data. Zoom from continent-wide views down to street level.
Bortle Scale Ratings
Get instant Bortle class ratings (1-9) for any location. Know exactly what you'll see before you travel.
Real-Time Conditions
Live weather data including cloud cover, seeing conditions, transparency, and moon phase for optimal planning.
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Get the Stargazing Quick-Start Checklist
Everything you need for your first night under the stars. Gear recommendations, location tips, and what to look for — all in a printable PDF.
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