As you watched Saturn, its size appeared to fluctuate from slightly larger to sl

Question

As you watched Saturn, its size appeared to fluctuate from slightly larger to slightly smaller. What could be causing the apparent change in size of Saturn? (Think about the orbits of Earth and Saturn and the fact that this fluctuation repeats every year.)

A .Saturn is getting larger and small like a pulsating star.

B. This is an optical illusion.

Earth is getting larger and smaller.

D .Earth's distance from Saturn is changing.

A .Saturn is getting larger and small like a pulsating star.

B. This is an optical illusion.

Earth is getting larger and smaller.

D .Earth's distance from Saturn is changing.

Explanation / Answer

Earth is getting larger and smaller.

Earth is getting larger and smaller.

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