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Unformatted text preview: = 28 days Moon rotates once each orbit = " synchronous rotation " Figure 6.11 shows this motion as well. [Link to Figure 6.11] Not unusual caused by gravity and tidal forces CD: See the animation on the 2nd edition CD in the Chapter 6 gallery, p.1 [Link to animation on web - VERY SLOW download] Interior No magnetic field moon does rotate slowly => probably no liquid in core (moon is smaller - cools more quickly - all solidified now) very little evidence of seismic activity • few "moonquakes" • no volcanoes • no continental drift Figure 6.9 gives some more detail of this picture. [Link to Figure 6.9] flow of heat from interior => warm interior...
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- Spring '10