armillary sphere

(redirected from armillary spheres)
Also found in: Thesaurus, Encyclopedia.

ar·mil·lar·y sphere

 (är′mə-lĕr′ē, är-mĭl′ə-rē)
An old astronomical model with solid, usually metal rings, all great circles of a single sphere, used to display relationships among the principal celestial circles.

[Translation of French sphère armillaire, from Latin armilla, bracelet, from armus, shoulder; see ar- in Indo-European roots.]

armillary sphere

(Astronomy) a model of the celestial sphere consisting of rings representing the relative positions of the celestial equator, ecliptic, etc, used by early astronomers for determining the positions of stars

ar′millary sphere′

an ancient astronomical instrument consisting of an arrangement of metal rings used to show the relative positions of the celestial equator and other circles on the celestial sphere.
ThesaurusAntonymsRelated WordsSynonymsLegend:
Noun1.armillary sphere - a celestial globe consisting of metal hoopsarmillary sphere - a celestial globe consisting of metal hoops; used by early astronomers to determine the positions of stars
celestial globe - a globe that is a spherical model of the heavens
Mentioned in ?
References in periodicals archive ?
From water flow to sun dials to astronomer priests to armillary spheres and more, humans have wanted to track time from the earliest days.
Wiseacre's Wizarding Equipment, where guests can grab wizarding essentials such as telescopes, binoculars, armillary spheres, compasses, magnifying glasses and hourglasses
Helmer Aslaksen, "Calendars, Interpolation, Gnomons and Armillary Spheres in the Work of Guo Shoujing (1231-1314)," Department of Mathematics, National Univ.
Armillary spheres were originally used to make astronomical measurements, but gained huge popularity in the 18th and 19th centuries as a means of teaching astronomy.
Caspar Vopel born; a maker of globes, armillary spheres, nocturnals, quadrants and maps.