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An astronomical instrument is a device for observing, measuring, or recording astronomical data. [citation needed] They are used in the scientific field of astronomy, a natural science that studies celestial objects and the phenomena that occur in the cosmos, with the object of explaining their origin and evolution over time.
History of the telescope; List of largest optical reflecting telescopes; List of largest optical refracting telescopes; List of observatory codes; List of Russian astronomers and astrophysicists; List of telescope types; Space telescope; Timeline of telescopes, observatories, and observing technology
This category contains articles about instruments used for astronomy. Subcategories. This category has the following 8 subcategories, out of 8 total. ...
It could be used for surveying, astronomy or other geometric problems. It consists of two components, a transom and a yard. The transom is the vertical component and is graduated from 0° at the top to 45° at the bottom. At the top of the transom, a vane is mounted to cast a shadow. The yard is horizontal and is graduated from 45° to 90°.
9th century – quadrant invented by Muhammad ibn Mūsā al-Khwārizmī in 9th century Baghdad and is used for astronomical calculations [2] 800–33 – The first modern observatory research institute built in Baghdad, Iraq, by Arabic astronomers during time of Al-Mamun [3]
Star hopping is a method often used by amateur astronomers with low-tech equipment such as binoculars or a manually driven telescope. It involves the use of maps (or memory) to locate known landmark stars, and "hopping" between them, often with the aid of a finderscope .
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