armillary sphere

Noun

An ancient astronomical device composed of a set of graduated rings representing circles on the celestial sphere, such as the horizon, meridian, Equator, tropics, and colure.

ریشه

From Latin 'armilla' meaning bracelet, and 'sphaera' meaning sphere.

مثال

• The armillary sphere was used in ancient times to predict celestial events.
• The museum had an armillary sphere on display.
• He used the armillary sphere to study the stars.

ترکیب‌های رایج

Ancient armillary sphere Brass armillary sphere Armillary sphere model