Why does the moon look so big sometimes and smaller other times?

Question

Why does the moon look so big sometimes and smaller other times?

In: Physics

Answer 1

Here’s a good way to test your own perception of that. Let’s say you’re going to go outside when the Moon is full; cover one eye; hold up a quarter so it covers the Moon; then move it in or out until it *just barely* covers.

Now how far will the quarter be from your eye?

Think this over. Write down your best estimate. Then wait for a full-moon night and try it out, and let’s see if you get a surprise.