Clear Sky Clock Locations - US

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Last updated 01/04/2008

Raw file: Clear_Sky_Clock-us.csv (125.74 KB)

Includes 2569 locations in the following areas:

  • United States: AK, AL, AR, AZ, CA, CO, CT, DE, FL, GA, IA, ID, IL, IN, KS, KY, LA, MA, MD, ME, MI, MN, MO, MS, MT, NC, ND, NE, NH, NJ, NM, NV, NY, OH, OK, OR, PA, RI, SC, SD, TN, TX, UT, VA, VT, WA, WI, WV, WY
  • some may be in: DC, MB, MEX, ON, QC (near a border)

1 location(s) outside USA/Canada

POIs for 2572 Clear Sky Clock locations covering the entire US. The hugely successful Clear Sky Clock project was started by A. Danko to provide an astronomical forecast of clear and dark skies over the next 48 hrs. The forecast data comes from a numerical weather model from the Canadian Meteorological Centre. See for further information and an example Clock.

Clear Sky Clock locations often correspond to good observing sites for amateur astronomers, star parties, parks, observatories, museums, and the like. Please use discretion when visiting a particular location; if the location is on private property (such as someone's back yard), you will have to seek permission first to set up and observe.

The POI file includes all locations in the US (as of 1/3/08) where permission has been given to disclose its geo coordinates. If you would like to view a particular Clear Sky Clock for one of the POIs, visit and enter a portion of the POI name (such as "Camp Onas") in the keyword search box.


See also