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Elevation map of Vesta's southern hemisphere. Higher elevations (red) are found on the crater rim (occluding Veneneia) and the central peak. Outlines of Rheasilvia and Veneneia, the latter being partially obliterated by the former. Hubble image of Vesta from May 2007. The flat spot at lower right is Rheasilvia seen in profile.
The Rheasilvia impact basin is younger and overlies the Veneneia. [75] The Dawn science team named the younger, more prominent crater Rheasilvia, after the mother of Romulus and Remus and a mythical vestal virgin. [76] Its width is 95% of the mean diameter of Vesta. The crater is about 19 km (12 mi) deep.
The following craters are officially considered "unconfirmed" because they are not listed in the Earth Impact Database. Due to stringent requirements regarding evidence and peer-reviewed publication, newly discovered craters or those with difficulty collecting evidence generally are known for some time before becoming listed.
This image or media file may be available on the Wikimedia Commons as File:Rheasilvia and older basin, Vesta.jpg, where categories and captions may be viewed. While the license of this file may be compliant with the Wikimedia Commons, an editor has requested that the local copy be kept too.
3-D anaglyphs of Rheasilvia's central peak at photojournal.jpl.nasa.gov: top view and side view; Color views of Rheasilvia's central peak at Planetary.org: side view (peak is at upper right) and mosaic of Vesta's southern hemisphere; Color panorama of Aeolis Mons from 21 September 2012 (smaller color-balanced view here)
The EID lists fewer than ten such craters, and the largest in the last 100,000 years (100 ka) is the 4.5 km (2.8 mi) Rio Cuarto crater in Argentina. [2] However, there is some uncertainty regarding its origins [ 3 ] and age, with some sources giving it as < 10 ka [ 2 ] [ 4 ] while the EID gives a broader < 100 ka.
It may be an ancient asteroid impact crater. A man planning a camping trip using Google Maps ran across a uniquely curved spherical pit in Quebec. It may be an ancient asteroid impact crater.
Veneneia / v ɛ n ɪ ˈ n iː ə / is the second-largest impact crater on asteroid 4 Vesta, at 52°S latitude. 395 kilometres (245 mi) [1] 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, and possibly as old as 4.2 billion years. [2]