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Philolaus
Philolaus is an interesting crater partly because the car that originated it struck exactly over another older crater, Philolaus C, and partly because the lunar craters are like humans, they are very similar in general form, but they have many details that differentiate them from each other.
The Philolaus Crater 70 km in diameter at first glance resembles Anaxagoras craters, Tycho and many other large craters, but the crest of its ring has deviations from the perfect circumference that give it unique characteristics.
Each of these features resembling steps mark where a section of the ring wall that was fractured and then slid to the floor, thus creating a piece of terrace or simply generating a mass of accumulated debris. Some pieces of rock - indeed small mountains a few miles wide - rolled down the wall of the crater's ring and settled into the interior, they can be seen with perfection in the attached photo.
 The lack of an atmosphere means that no sound was produced when these gigantic rock slides occurred, but many lunar earthquakes were produced with these slides creating a temporary dust cloud above the crater.
Stacking 180 frames out of a total of 2000.

 

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Edited by astroavani
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A magnifient entry. I love this contest!

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