If you’re planning an astronomy event, this is the place to assess your chances for success as the date approaches. There’s never any guarantees with Mother Nature, of course, but we always use these resources whenever an observing session is upcoming on our DFAC EVENTS schedule.

This is a custom sky quality chart prepared specifically for the DFAC New River, AZ area by Allan Rahill of the Canadian Meteorological Center. He will generate the code for whatever geographic location you request. Please consider donating to his effort, as DFAC has done. You can visit his website here, where an explanation of how to read the chart is provided.

Below you’ll see the current lunar phase, courtesy of They provide the HTML to embed in web pages for lots of interesting widgets, games, and calculators.


Here’s some additional weather links you might find useful when planning an astronomy event:

National Weather Service
North America IR Radar