"Astronomia Comparativa in qua Planetarum Primaria Phaenomena...", Doppelmayr/Homann
Period: 1742 (circa)
Publication: Atlas Novus Coelestis
Color: Hand Color
21.9 x 19 inches
55.6 x 48.3 cm
Johann Gabriel Doppelmayr was an astronomer of high repute and made a specialty of lunar observations. The main focus here is a chart comparing synodic periods as observed from Earth and other planets. Within this chart, there is a scene depicting heavenly creatures making observations through a telescope from their vantage in the clouds. Surrounding the chart are three Tychonic models of the solar system and a figure comparing the relative size of the Sun on different planets.
On watermarked paper with faint toning and wear along the centerfold, minor scattered foxing, and a centerfold separation just entering the neatline at bottom. Several extraneous creases run the length of the map.