The Artificial or Oblique Armillary Sphere, Nicolas de Fer, 1740
Nicolas de Fer, portraitNicolas de FerFrench, 1646–1720

The Artificial or Oblique Armillary Sphere

1740 · Print · 40.32 × 42.23 cm

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Not on view at present

Where is “The Artificial or Oblique Armillary Sphere” now? Collection: Minneapolis Institute of Art, Minneapolis. Not on view at present. Checked October 12, 2026.

Minneapolis Institute of Art

Minneapolis, United States

It belongs to the collection, but is not on display at present.

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About the work

Ancient astronomers used the armillary sphere to measure the coordinates of stars. By the 17th century, the tool was regarded as too imprecise for scientists, but it found new life in the well-appointed libraries of rich burghers, where it became a chic curiosity and emblem of sophistication. This example shows the traditional model, with the Earth at the center of the universe. The graduated rings represent the primary celestial sphere, which includes the 12 constellations of the zodiac, the celestial equator, the meridian, and the latitude lines of the Earth projected into the sky.

This complicated engraving also depicts four competing interpretations of the cosmos-those of Ptolemy, Copernicus, Tycho Brahe, and Descartes-as well as the uneven surface of the Moon (note the mountains and deep craters), first observed by Galileo in 1609.

Minneapolis Institute of Art

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Accession number
P.90.27.163

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