Monochrome star chart with several constellations, including Cetus and Andromeda, tracing the path of a comet from its first sighting in December 17, 1664, to 7 Feb 1665. Title reads "Figura 2. observat. Cometicar. Tridenti factar. ad Communicat. R. P. C. Schotti pertinens. No. 43."