Monochrome engraving showing several constellations, including a fish, drawn with both their figural representation and the actual placement of the stars, represented with asterisks. A comet is shown cutting through the composition. The text reads: "No. 50. Figura Observationis Cometae verni, factae Harlemi: d 3/13 Aprilis 1665 ad Communicat Lugduno Batavam pertinens. Observatio haec exhibet Cometab in concursu rectarum unius a Lucida Aquilae per sequentem duarum in pectore Pegasi & akteru, a lucida Persei per cingulum Andromedae ductarum. B. Stopendaal Schulpsit."
