Thread: moon's rotation
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Old December 11th 05, 03:12 PM posted to alt.astronomy
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Default moon's rotation

"Ryan Evans" wrote in message
...
Do we always see the same side of the moon, or does it slowly rotate
in relation to our view?

To me, it seems quite a cooincidence that the moon rotates perfectly
such that we see the same side constantly.

RE


No coincidence. In fact it's quite common.

It's called 1-to-1 spin-orbit resonance.


"Most of the moons in the solar system are similarly locked by the tidal
fields of their parent planets."
http://physics.fortlewis.edu/Astrono...ML/AT30803.HTM

"All the large moons in our Solar System are in 1:1 spin-orbit resonances:
Those moons always show the same side to the planet, just like our Moon does
relative to the Earth."
http://www.astro.uu.nl/~strous/AA/en...rtekracht.html


Question: What major solar system object is locked into a spin-orbit
resonance with its primary that is other than 1-to-1?