A dark albedo feature about across has been named Olbers in honour of Vesta's discoverer, but it does not appear in elevation maps as a fresh crater would, and its nature is presently unknown, perhaps an old basaltic surface.
A feature about across was named "Olbers" in honour of Vesta's discoverer. But it doesn't show up in elevation maps, as a crater would and its nature is unknown. Maybe an old surface.