[Usus Annuli Astronomici]

Method Woodcut
Artist Frisius, Gemma after Apianus, Petrus
Published Antverpiae, ex Officina Ionnis VVithagij. Anno 1584. [Antwerp, 1584]
Dimensions 230 x 155 mm
Notes An illustration of Frisius' astronomical rings, from the 1584 Latin printing of Gemma Frisius' edition of Peter Apian's landmark Cosmographicus liber. The three rings, representing the celestial equator, declination, and the meridian, were first published by Frisius in 1534, before being included as an addendum to his editions of Apian. The rings act like a portable armillary sphere, and are so closely connected with their creator that they are often referred to as 'Gemma's Rings.'

Jemme Reinerszoon, known under his Latin nom de plume Gemma Frisius (1508-1555), was a Frisian cartographer, astronomer, physician, and mathematical and scientific instrument maker. Among his students were some of the most important scientific minds of the age, including Mercator, John Dee, and Vesalius.

Petrus Apianus, born Peter Bienewitz (1495-1552), was a German cartographer, astronomer, and humanist scholar, best known for his two seminal astronomical works, the influential and much reprinted Cosmographicus liber (1524) and the lavishly decorated Astronomicum Caesareum (1540). The former brought its author into the orbit of the Holy Roman Emperor Charles V, who appointed him Court Mathematician and made him both a Free Imperial Knight and a Count Palatine.

Condition: Time toning and minor foxing to sheet, especially along edges. Insect damage to bottom left side of sheet, in-filled, and to right margin. Latin text on verso.
Framing framed
Price £200.00
Stock ID 51475