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Clear Sky Charts in Ontario

Details | Map

Note: Map may take 30 seconds to appear.

Only non-private charts in Ontario shown: 244 of 4194 in North America.
Zoom out to Index Map Nearby Manitoba Michigan Minnesota New York Quebec

How to read this map

This map shows where astronomy-specific weather forecasts, or "clear sky charts", are available.
The colors of the markers indicate amount of light pollution there (colors defined here).
You can:
  • hover over a colored marker to show the chart's name
  • Click on a maker to display a the small version of the chart, and link to the full version
  • Click and drag on the map to pan.
  • Double click on the map to pan and zoom.
  • Even though this map can be zoomed out to show the all of North Americathis page only shows charts in Ontario.
    The full list is here.