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Veneneia
Veneneia ( ) is the second-largest crater on asteroid 4 Vesta, at 52°S latitude. 〔('Vesta seems more planet than asteroid' ), ''Science News'', 2012 Mar 22〕 in diameter, it is 70% of the equatorial diameter of the asteroid, and one of the largest craters in the Solar System. It is at least 2 billion years old.〔("Incredible video 'fly-over' by Nasa's Dawn probe reveals huge rippled asteroid Vesta is more like a small planet" ). ''Daily Mail'', 15 May 2012. Retrieved 23 May 2012.〕 However, it is overlain and partially obliterated by the even larger Rheasilvia. It was discovered by the ''Dawn'' spacecraft in 2011. It is named after ''Venēneia'', one of the founding vestal virgins.〔(Veneneia ), ''Gazetteer of Planetary Nomenclature'', 2012 Feb 28 (NASA coordinates)〕 Vesta has a series of troughs in the northern hemisphere concentric to Veneneia. These are believed to be large-scale fractures resulting from the impact. The largest is Saturnalia Fossa, approx. 39 km wide and > 400 km long.〔(EXPLORATION OF SATURNALIA FOSSA AND ASSOCIATED STRUCTURES IN VESTA'S NORTHERN HEMISPHERE )〕 ==References==
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