Clear Sky Chart Homepage
Mar 31, 2025 · That's when the sky will likely to be clear and dark. A more detailed explanation is here , but the short version is: the clear sky chart predicts hourly cloud cover, atmospheric transparency and seeing.
ClearDarkSky
21 hours ago · A color-coded map of the world showing sources and levels of light pollution (man-made light that lights up the night sky and reduces what astronomers can see). It is a mirror of David Lorenz's Light Pollution Atlas 2020, but superimposed on Open Street Maps. Used by many to find good observing sites. Used with permission
The Clear Nights Observatory Clear Sky Chart
When the forecast is clear, the sky may still be hazy, if the transparency forecast is poor. Accuracy averaged over North America for a 30 day period: when the forecast is predicting less than 12 hours into the future, mostly-clear forecasts (cloud<25%) have been right 80% of the time.
Clear Sky Charts in Kentucky (List) - ClearDarkSky
Apr 4, 2025 · Park in Kenton county. Formerly known as Banklick Woods Park. Site of Star Gazes (public star parties) with the Midwestern Astronomers. Louisville
Clear Sky Chart Coverage - ClearDarkSky
This map shows the area for which astronomical observing weather forecasts are available. Each black spot shows the approximate location of a Clear Sky Chart. Click near a spot to show that chart.
Clear Sky Charts in Maryland (List) - ClearDarkSky
2 days ago · Near Clear Spring, between Hancock and Hagerstown. Carr's Mill Park A park with no facilities, occasionally used by the Howard Astronomical League for impromptu members-only events.
Clear Sky Charts in New Mexico (List) - ClearDarkSky
5 days ago · Visitor center of El Morro National Monument which is applying for International Dark-Sky Park status. El Rito Observatory On the El Rito campus of Northern New Mexico Community College .
Clear Sky Charts in Texas (List) - ClearDarkSky
Apr 4, 2025 · A dark sky astronomy and nature retreat: located 100 miles west of Fort WorthAthens
Montreal Clear Sky Chart - ClearDarkSky
1 day ago · When the forecast is clear, the sky may still be hazy, if the transparency forecast is poor. Accuracy averaged over North America for a 30 day period: when the forecast is predicting less than 12 hours into the future, mostly-clear forecasts (cloud<25%) have been right 80% of …
Clear Sky Charts in Michigan (Map) - ClearDarkSky
Apr 4, 2025 · 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: Click on a maker to display a the small version of the chart, and link to the full version Click and drag to pan the map.