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Armillary Sphere

24"h, 10"w, 10"d

This is one cool looking piece! The antique gold finished orb of the Sun beckons from within 9 rings representing the paths of surrounding celestial bodies. Sphere and polished steel finish armillary rings rotate independently on a universal axis. The inverse arcs of the matching tri-leg stand harmonize with the concentric curves of this Striking Piece. Piece has a Primitive Finish. Scroll to bottom of this page for description of Armillaries

 AA-52259 ...$124.95 ea


Nickel Globe

15.5"h, 8.5"w

Primitive looking piece! Nickel Sphere with brass ball accents Sphere has polished nickel finish. Globe rotate independently on a universal axis. Globe has no markings except the welds are visible at circumference

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 AA-52258 ...$82.95 ea



Black Iron & Brass Armillary

16.5"h, 8."w

Very Primitive looking piece! Black Iron Stand with 3 brass concentric circles Circles in brass rotate independently on a universal axis. This is very primitive in appearance

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 AA-51984 ...$58.95 ea

 An armillary sphere is basically a skeletal celestial sphere with a model of the Earth or, later, of the Sun placed in the center. It is useful as a teaching tool and as an analog computer for solving various astronomical problems to a crude degree of accuracy. Armillary spheres were developed by the Greeks in antiquity for use as teaching tools. In larger and more precise forms they were also used as observational instruments, being preferred by Ptolemy. Armillary spheres became popular again in the late middle ages. With the advent of the Copernican model of a Sun centered Universe pairs of spheres contrasting the Copernican and Ptolomaic models became common teaching/demonstration tools. Such small teaching sphere remained popular through the nineteenth century

The Armillary sphere consists of two major components, the sphere and the stand, as seen in the figure above. The heart of the Armillary sphere is the sphere itself, which was often made and used alone. Renaissance painters frequently show spheres on handles in paintings of scholars etc. The central body in the sphere represents the Earth, which was, of course, considered the center of the Universe. The colures and the Equator (the rings defining the sphere) represent the firmament, that is, the sphere upon which the fixed stars reside. The band going around the sphere, at an angle to the equator, represents the zodiac. The line running through the middle of this band defines the ecliptic, or the path followed by the Sun through the sky. The width of the band is ideally about ±9° to include the wandering of the Moon and planets above and below the Sun's path. The various constellations of the Zodiac also fall along this band.