This machine, he says, has a circumference of thirty-two feet, being constructed in the form of an armillary sphere.
The horizon diameter of this armillary sphere is about 21 cm.
Never had any armillary sphere so many zones, as there were here circles, which had the light for their centre.
armillary, r′mil-lar-i, or r-mil′lar-i, adj. resembling an armlet or bracelet: consisting of rings or circles.
On the left there is an armillary dial by F. Culpeper, of London.
The armillary sphere (Fig. 117) stands at the east end130 of the court.
At the top, the drip-mould grows into a large trefoil with crockets outside and an armillary sphere within.
The Biblioteca Barbarini of Rome possesses four armillary spheres, all appearing to be of the early seventeenth century.
This globe supports the several circles composing the armillary sphere.
The piece may be referred to as a fine example of the armillary sphere of the period.