"Comet Tago-Sato-Kosaka, 1969 g. A 3-min exposure on Kodak Ila-O with the Curtis-Schmidt telescope, University of Michigan, located at the Cerro Tololo Inter-American Observatory. Plate taken 1969 December 28.06 UT."
V. M. Blanco and Arturo Gomez, Public domain, via Wikimedia Commons. Color edits.
