NASA / ESA / L MCFADDEN, U MARYLAND / SCIENCE PHOTO LIBRARY NASA / ESA / L MCFADDEN, U MARYLAND / SCIENCE PHOTO LIBRARY
Vesta asteroid (4 Vesta), Hubble Space Telescope image. The asteroid's south pole (lower right) has been flattened, suggesting that it has experienced a major impact with another object in the past. Vesta orbits the Sun between the orbits of Mars & Jupiter at an average distance of 353 million kilometres. It is the second largest asteroid, having a diameter of about 538 kilometres. Under favourable conditions, it is the only asteroid visible to the naked eye. Image taken by the Wide Field Planetary Camera 2 in May 2007.
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