Small Asteroids and Comets Visited by Spacecraft as of December 2018, in Color Small Asteroids and Comets Visited by Spacecraft as of December 2018, in Color A montage of 18 of the 20 asteroids and comets that have been photographed up close as of December 2018, when New Horizons flew past Arrokoth. This version is in color but does not show the bodies at their correct relative albedo or brightness. Not included are Vesta or Ceres, both of which are many times larger than Lutetia. Montage by Emily Lakdawalla for The Planetary Society. Data from NASA / JPL / JHUAPL / SwRI / UMD / JAXA / ESA / OSIRIS team / Russian Academy of Sciences / China National Space Agency. Processed by Emily Lakdawalla, Daniel Machacek, Ted Stryk, Gordan Ugarkovic / Thomas AppéréThe "click to enlarge" version is a JPEG. Here is a print-quality PNG.Here is a PNG with an attempt at correct relative albedo and color.