All asteroids and comets visited by spacecraft as of September 2008
The total of four comets and eight asteroid systems (including nine separate bodies) that have been examined up close by spacecraft are shown here to scale with each other (75 meters per pixel, in the fully enlarged version). Most of these were visited only briefly, in flyby missions, so we have only one point of view on each; only Eros and Itokawa were orbited and mapped completely.
This image is also available without text. There is also a larger version at 20 meters per pixel (6000x4500 pixels, 4.2 MB), with or without text (3.9 MB). Montage by Emily Lakdawalla. All images NASA / JPL / Ted Stryk except: Mathilde: NASA / JHUAPL / Ted Stryk; Steins: ESA / OSIRIS team; Eros: NASA / JHUAPL; Itokawa: ISAS / JAXA / Emily Lakdawalla; Halley: Russian Academy of Sciences / Ted Stryk; Tempel 1: NASA / JPL / UMD; Wild 2: NASA / JPL.