Is our Moon unique?
Hi all,
I've been thinking lately about our moon and thought it strange how it's orbit time exatly matches it's rotation (so we only ever see the one side) and that it's axis must be exatly 90 degrees to it's orbit (or we would see some of the dark side at different times) and that it has been like this for eons.
Is our moon the only known moon that does this?
Also, does our moon appear to be the same size as the sun because the sun is 400 times bigger than the moon and the sun is 400 times further away from earth than the moon is?
Thanks
Goldie
|