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I dont understand how it worked. It does not mention any telescope but does mention largest "quadrant principle device" with not further explanation on what thi
by smusamashah 4y ago
I dont understand how it worked. It does not mention any telescope but does mention largest "quadrant principle device" with not further explanation on what this is and how it worked.
- steaktartaar_ 4y agoThe observatory predates the invention of refracting telescopes. It was used to determine the position and movement of stars and planets, not to observe them. The "quadrant" is a device to accurately measure the angle of an observation: https://en.m.wikipedia.org/wiki/Quadrant_(instrument) https://en.m.wikipedia.org/wiki/Quadrant_(instrument)
- flohofwoe 4y agoIt's essentially a very big 'protractor' used to measure angles (of stars or the sun over the horizon). The bigger such a device is, the more accurate the measurements.
- equalsione 4y agoOddly, the article on Ulithi Beg himself has a better description of how the observatory works https://en.m.wikipedia.org/wiki/Ulugh_Beg https://en.m.wikipedia.org/wiki/Ulugh_Beg