In Aristotelian physics and Greek astronomy, the sublunary sphere is the region of the geocentric cosmos below the Moon, consisting of the four classical...

and the fixed stars to be perfectly concentric spheres in a superlunary region above the sublunary sphere. Aristotle had asserted that these bodies (in...

air and fire - with fire at the top, Aristotle saw the sublunary world as surmounted by the sphere of fire. Aristotle's conception became prevalent in the...

Moon is described as the boundary between the corruptible and changing sublunary world and the incorruptible and unchanging heavens above it. Ptolemaic...

form the sublunary sphere. According to Aristotle, air is both hot and wet and occupies a place between fire and water among the elemental spheres. Aristotle...

first, concerned with the influences of the celestial bodies in the sublunary sphere. Thus explanations of a sort are provided for the astrological effects...

motions are ruled by principles other than those of bodies in the sublunary sphere. The latter are composed of one or all of the four classical elements...

Aristotle contrasts the imperfection of the sublunary sphere with the perfection of the celestial sphere. Thus uniform motion is also superior to non-uniform...

the sublunary sphere. According to Aristotle, water is both cold and wet and occupies a place between air and earth among the elemental spheres. In ancient...

face was to position astronomical bodies with respect to the celestial sphere along the ecliptic, in reference to the observer's position on the Earth...