Curated OER
Angular Diameter of the Sun
Starting with a paragraph of information presenting the different ways we can observe planetary objects, pupils work through these instructions to see how they can observe and measure angles. Your class will discover how these...
Cornell University
Cornell University: Astronomy: The Phases of the Moon
This site from Cornell University provides great information on the different phases of the moon. As the Moon moves in its orbit around the Sun, our view of the side illuminated by the Sun changes. Furthermore, the rising and setting...
NASA
Nasa Star Child: Moonlight Madness
The revolution of the Moon around the Earth causes the Moon to appear to change shape in the sky. These apparently different shapes are called "phases" of the Moon. The Moon passes through a cycle of eight phases which repeats itself...
US Navy
Usno: Virtual Reality Moon Phase Pictures
In addition to providing the current phase of the Moon [within 4 hours] you can find the phase of the moon for any date and time from 1800 to 2199 A.D. Universal, Eastern, Central, Mountain, and Pacific Time Zones will apply to most users.