Halley - Giotto

False color image of the nucleus of Comet Halley

Halley
Giotto false color image of the nucleus of comet Halley taken 95 seconds before closest approach from a distance of 6500 km. Closest approach distance was 596 km. The nucleus of the comet is roughly 16 x 8 x 8 km. It is one of the darkest, or least reflective, objects in the solar system, with an albedo of 0.03. (Giotto, 86-HC-145)