Could a ~150 mile impact basin form from a small object imact?
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Could a ~150 mile (240 kilometers) crater form from a small object impact?
So the object impacting the site of the crater is a human shape and not able to be destroyed. The location of the impact is in an ocean which is on average 1000 feet (304 meters) deep with the ocean floor made of mostly granite. The atmosphere is also similar to earths. The gravity is half that of earth.
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The impactor can be as dense as you like and go from a human foot sized object to a refrigerator if that helps.
This post was sourced from https://worldbuilding.stackexchange.com/q/135807. It is licensed under CC BY-SA 4.0.
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