⚠The text on this page is extremely faded, appearing almost as a ghost image or bleed-through. The transcription is based on the visible traces consistent with the title page of Christiaan Huygens' "Systema Saturnium" (1659).

BY CHRISTIAAN HUYGENS

THE SYSTEM

OF SATURN,

Concerning the causes of the wonderful

phenomena of Saturn,

And

its companion,

a new planetoriginal: "PLANETA NOVO." In the seventeenth century, the term "planet" was commonly applied to moons; Huygens is referring here to his discovery of Titan, the first known moon of Saturn..

THE HAGUE,

From the printing house of ADRIAN VLACQ.

1659.