Vesta Sizes Up Target Name:   Asteroid Vesta, Asteroid Lutetia, Asteroid Mathilde, Asteroid Ida, Asteroid Eros, Asteroid Gaspra, Asteroid Annefrank Spacecraft:   Dawn Instrument:   Framing Camera Produced by:   NASA/JPL-Caltech/JAXA/ESA Copyright:  NASA Copyright Free Policy Date Released:  2011-07-18

• Asteroid Vesta
• Asteroids

This composite image shows the comparative sizes of eight asteroids. Up until now, Lutetia, with a diameter of 81 miles (130 kilometers), was the largest asteroid visited by a spacecraft, which occurred during a flyby.

Vesta, which is also considered a protoplanet because it's a large body that almost became a planet, dwarfs all other small bodies in this image, with its diameter sizing up at approximately 330 miles (530 kilometers).