Career
He was also a doctor of medicine and philosophy. He introduced some constellations that created by a Dutch cartographer Plancius. And he invented now obsolete constellation Rhombus.
lieutenant followed by a French cartographer Royer.
Later, it tuned into le Reticule Romboide (now Reticulum) by a French astronomer de Lacaille. Isaac Habrecht I: his father, a horologist.
