Sky Conditions

Weather

River Ridge Observatory Sky Conditions

Astrospheric advanced weather forecasting

The Weather Underground

Infrared Satellite Imagery, infrared imagery shows moisture in the air and therefire is a gauge of transparency.

Estimating Limiting Magnitude

Sky Events

Sky Almanac

This Week’s Sky at a Glance

U.S. Naval Observatory Data Services

Time and Date

Moon Phase Calendar

The Sun Now