Astro Corner
Your corner of the universe.
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Observe somewhere darker
Dark-Sky & Observing Site Map
Explore community-maintained public observing sites with Bortle estimates, SQM readings and practical access information.
Filter observing sitesFilters stay in your browser and do not change the public site records.
Observing-site POIsEach numbered pin is a public Astro Corner observing site; lower Bortle = darker sky.The OpenStreetMap base map and Astro Corner site pins work without an overlay. A licensed continuous light-pollution tile provider can be enabled separately.
Community sky quality
Help make the map better.
Public observing sites can carry Bortle/SQM information, access notes, facilities, parking, accessibility and community reports while private home locations stay private.