We model the positions of the Moon, the Earth, and the Sun using the projector to simulate the Sun and its sunlight, and having a person rotate in place in front of the projector to match the rotation of the Earth through a single day. The Moon then orbits the Earth, taking a full month to go around once.

• Which way does the Earth rotate so that the Sun appears to rise in the east, and set in the west?

• How do the seasons change between the northern and southern hemispheres (between North and South America)?

• When is the new Moon overhead?
  • When and where does the new Moon rise?
  • When and where does the new Moon set?

• When is the first quarter Moon overhead?
  • When and where does the first quarter Moon rise?
  • When and where does the first quarter Moon set?

• When is the full Moon overhead?
  • When and where does the full Moon rise?
  • When and where does the full Moon set?

• Do the phases of the Moon appear different in one hemisphere or the other?

• Do we see any stars during the day?

• Do we see the stars move during the night?

• Do we see different stars overhead from one hemisphere or the other?

• Do we see different stars overhead at midnight in January than in July?

• Do we see different stars overhead from one year to the next?

• Do we see different stars overhead from one millennium to the next?

• Do the paths that the stars trace appear different from the Equator than the Poles?