Bruce Murray Space Image Library
Comet Halley from Giotto, in color
All source images were resampled to 50 m/pix resolution.
(Keller et al 1992)
Keller, H. U., N. Thomas, W. Curdt, and G. Schwarz, GIOTTO HALLEY MULTICOLOR CAMERA IMAGES V1.0, GIO-C-HMC-3-RDR-HALLEY-V1.0, NASA Planetary Data System, 1992