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A Unified Constellation System. Star maps containing 1464 stars in 284 Constellations, written astrology text - Equatorial Armillary Sphere (渾儀 Hun Xi) Kong Ting (孔挺) 323 AD-- Northern Wei Period Iron Armillary Sphere (鐵渾儀) Hu Lan (斛蘭) 436–440 AD - Southern Dynasties Period Whole Sky Planetarium (渾天象Hun Tian Xiang)
Portrait of Lady Su Hui along with the poem. The Star Gauge (Chinese: 璇璣圖; pinyin: xuán jī tú), or translated as "the armillary sphere chart", is the posthumous title given to a 4th-century Chinese poem written by the Sixteen Kingdoms poet Su Hui for her husband.
Jost Bürgi and Antonius Eisenhoit: Armillary sphere with astronomical clock, made in 1585 in Kassel, now at Nordiska Museet in Stockholm. An armillary sphere (variations are known as spherical astrolabe, armilla, or armil) is a model of objects in the sky (on the celestial sphere), consisting of a spherical framework of rings, centered on Earth or the Sun, that represent lines of celestial ...
The clock has an armillary sphere with a diameter of 40 cm. The sphere is activated by a clockwork mechanism, designed to display the position of the heavens at any given time, as well as displaying the hours and marking their passage with a chiming bell. The device is no longer in working order. The clock is owned by Korea University Museum ...
The earliest development of the armillary sphere in China goes back to the 1st century BCE, [23] as they were equipped with a primitive single-ring armillary instrument. This would have allowed them to measure the north polar distance (去極度, the Chinese form of declination) and measurement that gave the position in a hsiu (入宿度, the ...
The spherical astrolabe was a variation of both the astrolabe and the armillary sphere, invented during the Middle Ages by astronomers and inventors in the Islamic world. [ b ] The earliest description of the spherical astrolabe dates to Al-Nayrizi ( fl. 892–902).
Inscription on Caspar Vopel's world map of 1545 (1558 copy) explaining why he joined New Spain with Asia: Some years ago, Dear Reader, when I was explaining Gaius Julius Hyginus’ Poeticon Astronomicon Simulacrorum by calculated images, I also at that time outlined and wrote out various geographic delineations, to which the scholiasts, in part ...
A globe is a spherical model of Earth, of some other celestial body, or of the celestial sphere. Globes serve purposes similar to maps, but, unlike maps, they do not distort the surface that they portray except to scale it down. A model globe of Earth is called a terrestrial globe. A model globe of the celestial sphere is called a celestial globe.