How big are these space rocks? These frightening graphics compare asteroid sizes to different places on Earth.
Above: This graphic imagines asteroid 243 Ida as it would fantastically hover over the city of St. Louis, Missouri. Credit and copyright: Ciro Villa.
Ciro Villa said:
“My representations are is purely for illustrative purposes. I have maintained the size ratios and proportions as accurately as possible just to demonstrate the dimensions. This is mostly a ‘fun’ exercise.”

An imaginary graphic depicting how Deimos would look if it hovered over Paris, France. Credit and copyright: Ciro Villa.
Villa said:
“Deimos is about 15 kilometers across, so I have measured a portion of the city of Paris, France of about 5 Kilometers and properly scaled Deimos. For added dramatics, I have purposely shown enough of Deimos hovering to show about 5 kilometers of Paris, to show some of the landmarks (notice the Eiffel tower). Had I decided to show all of Deimos, the scale would have been too large to recognize any of the landmarks of Paris.”

A graphic imagining asteroid Phoebe (Saturn IX) hovering Central Florida. Credit and copyright: Ciro Villa.
Villa said:
“Phoebe shares an approximate diameter of 200 kilometers with the central portion of the state, and I wanted to ‘play’ with my imagination a bit!”

Asteroids Orcus and Vanth hovering over Eastern Texas and Western Arkansas. Credit and copyright: Ciro Villa.
via universetoday
source Ciro Villa
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