Mars, Jupiter, Saturn 9-28 - Mars, Jupiter, Saturn The Sun,...

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Mars, Jupiter, Saturn The Sun, Moon, and Tides Earth’s rotation gradually slowing down due to tidal friction o Day gets longer by 1 second every 100,000 years We see the same side of its orbit and rotation are in synch o The moon is locked in synchronous location o Rotates one time for every revolution around the Earth o Physical reasoning for this Acceleration felt by the moon = same as felt by an apple A = f/m The force that a particle on the surface of the moon feels = o G (mm/r^2) Particle on the moon feels only 1/6 of the acceleration as on Earth Smooth regions on the moon called maria o Latin for seas A region that is less cratered than other regions is probably younger Can get the relative ages of features by looking at things that are superimposed on other things, such as craters on top of craters Oldest rocks are 3.9-4.3 billion years old o Moon gives a picture of what the geologic picture looked like on Earth o Less erosion on the moon
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This note was uploaded on 04/04/2008 for the course ASTRO C 10 taught by Professor Filippenko during the Fall '08 term at University of California, Berkeley.

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Mars, Jupiter, Saturn 9-28 - Mars, Jupiter, Saturn The Sun,...

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