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- From: pad@galaxy.nsc.com (Paul Denny x8349)
- Subject: moon tides
- Message-ID: <1992Sep3.191452.1757@voder.nsc.com>
- Keywords: wobble
- Sender: news@voder.nsc.com
- Organization: National Semiconductor, Santa Clara
- Date: Thu, 3 Sep 1992 19:14:52 GMT
- Lines: 18
-
- A recent thread recently explained why angular momentum
- was transferred from the earth to the moon causing the
- diameter of the moons orbit to increase. The same mechanism
- was invoked I think to explain why the moon is locked with
- one face towards the earth.
-
- Yesterday I read that early NASA lunar "landers" (crashers
- is perhaps a better word) discovered that the centre of
- gravity of the moon is offset fom the geometric centre.
- It seems to me that if the moon was rotating it would
- have its geometric centre rotating around its centre of
- mass and hence the geometric centre would move into and
- out of a stronger gravitational field. At first I thought
- that this wouldn't have any effect with only the c of m
- being important but given that gravitational fields are
- non linear I am not sure what the affect would be.
-
- Can anyone help? Thanks Paul
-