Monochrome engraving divided into 12 small frames, of which 11 depict parts of star chart with both the component stars (with differing symbols corresponding to different magnitudes) and the figural representation of several constellations. Each shows the progress of a comet across that area of the night sky. One of the small frames depicts a town with houses, trees, and fences at night, with a double crescent moon and many stars above it. From the book "Theatrum Cometicum".
