Why visual size of the Earth is not 3,6 times bigger on some of the Apollo footage videos and photos taken from the Moon surface?

Question

Edit title – 3,6 times bigger than visual of the Moon we see here on the Earth surface?

In: Mathematics

Answer 1

At night, try holding your hand out at arm’s length, and use your thumb to measure the distance between two stars.

Now, bend your arm so that your hand is closer to your face, perhaps about half arm’s length. Now you use your thumb to measure the same distance between stars?

It seems like your thumb has changed size, relative to the stars, just because it’s nearer!

It is the same whenever you are using nearby objects to measure distant objects. You can’t just eyeball them and not know the distances to each.