Clear skies are everything in astronomy. Use the tools below to check forecasts, cloud cover, transparency, seeing conditions, and space weather before heading out to observe.
Astrospheric Forecast — Kingston
Current Moon Phase
The Sun Now
Sunspots (HMI)
Corona (AIA 171)
NASA SDO — updates every ~15 min · click for full resolution
Space Weather & Aurora Forecast
Aurora Forecast — Northern Hemisphere
NOAA OVATION Aurora Model · click for details
Planetary Kp Index & X-ray Flux
NOAA SWPC · click for dashboard
GOES-East Satellite — Northeast Sector
Click image for full 24-hour animated loop