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Originally posted by Phage
reply to post by CherubBaby
Source
Originally posted by ProudBird
reply to post by nosacrificenofreedom
I am an amature astronomer.....
Well then, you should be gently corrected on this mistake, to improve your level of comprehension about the science of astronomy:
First off the moon does not rotate....
Yes, it does. It rotates about its own axis once every approximately 28 days.
That is why
.... the same side of the moon always facing the earth.
As it orbits the Earth, it takes approximately 28 to 29 days, per orbit. Therefore, we see only the hemisphere that is facing us...actually, we see a bit more than that, more than 50%. (Because its period of rotation is not exactly matched to its period of orbit). This is known as "gravitational lock", sometimes called "tidal locking"....and is very common in our Solar System, with other moons around other planets.
You can research this online, in many, many locations.
Originally posted by CherubBaby
reply to post by Manhater
Thanks for the thread. I will tell you something that should interest you and some others on here. The Earth is in a wobble or the moon's orbit is in disarray.
Originally posted by ArMaP
reply to post by galactix
A quick look at Wikipedia shows that the Earth wobble (that text you copied is about the Earth wobble, not the Moon's) was predicted by Newton and Euler, so I think it's included in all present theories.
Originally posted by ArMaP
reply to post by galactix
It's not that weird, what's weird is the composition of the Moon, with more dense areas in a less dense whole, like pieces of fruit inside a cake.
Originally posted by galactix
Newton dealt with the simplest of the celestial motions, he was busy inventing the calculus and well so i'll give him a break...can you show me where Euler predicts these multi-mode long duration wobbles?