ARMILLARY SPHERE Meaning and
Definition
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An armillary sphere is a three-dimensional model of celestial objects used to demonstrate the motion and relationships of celestial bodies in the universe. Consisting of a set of graduated rings representing the circles of the celestial sphere, an armillary sphere provides a visual representation of the celestial sphere and its various components.
The main structure of an armillary sphere features a central axis representing the Earth's axis and a polar axis perpendicular to it. These axes intersect at the celestial poles and serve as the frame upon which the rings are mounted. The rings, made of metal or another durable material, represent various important circles on the celestial sphere, such as the celestial equator, ecliptic, meridian, and others.
Armillary spheres were essential tools for astronomers and navigators, particularly during the medieval and Renaissance periods, as they allowed for precise calculations and measurements related to celestial bodies. They facilitated observations and predictions of the positions of celestial objects, planetary movements, and the measurement of the Earth's movements. Early armillary spheres often included features to represent the known planets and stars and could be used as navigational instruments.
Over time, armillary spheres became more elaborate and decorative objects or scientific curiosities rather than practical tools. Today, they are often found in museums or as ornamental objects representing the rich history of astronomy and the human quest to understand the cosmos.
Common Misspellings for ARMILLARY SPHERE
- zrmillary sphere
- srmillary sphere
- wrmillary sphere
- qrmillary sphere
- aemillary sphere
- admillary sphere
- afmillary sphere
- atmillary sphere
- a5millary sphere
- a4millary sphere
- arnillary sphere
- arkillary sphere
- arjillary sphere
- armullary sphere
- armjllary sphere
- armkllary sphere
- armollary sphere
- arm9llary sphere
- arm8llary sphere
Etymology of ARMILLARY SPHERE
The word "armillary" is derived from the Latin word "armilla", which means "bracelet" or "ring". The term "sphere" refers to a globe or a spherical object. In this context, the term "armillary sphere" is used to describe a model of the celestial sphere, consisting of a series of rings representing the celestial circles, such as the equator and the tropics. The spheres were often made of metal and were used in ancient astronomy to study the movements of celestial bodies.
Similar spelling words for ARMILLARY SPHERE
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