1. Time, Moon Phases, and Eclipses

2. Telling Time from the Sky
Motion of the Sun on the horizon animation
Motion of the Sun on the horizon simulation

3. The Analemma (movie)

4. The Analemma

5. Moon Phases
Half the Moon always is illuminated, but as it orbits us, our view of the bright half changes.
Moon Phase Simulator
Moon Phase Quizzer
3 Views

6. Solar Eclipse
= the Moon blocks our view of the Sun, i.e. we are in the Moon’s shadow.

7. Total solar eclipse: November 13, 2012 Northern Australia
Australia Eclipse 1
Australia Eclipse 2

8. Solar eclipse: March 29, 2006

9. Lunar Eclipse
= Earth blocks the Moon’s “view” of the Sun, i.e. The Moon is in Earth’s shadow.

10. Why don’t we have a lunar eclipse every month?

11. Early January
Early July