Peterborough Astronomical Association

Clear Sky Clock for Peterborough, Ontario, Canada

LATEST NEWS: Welcome to the PAA's new web site! Visit often for the latest club news and events...

Tonight's observing forecast

The "Clear Sky Clock" is a handy new standard for predicting local weather for astronomical observing in far more detail than conventional weather forecasts.

Peterborough's Clear Sky Clock provides information on current and future cloud cover, but also looks at the clarity and stability of the sky. It also takes into consideration when the moon will be out and what phase it is in.