The astrolabe is a portable wooden or metal astronomical instrument which is used to measure the positions and altitudes of celestial bodies, to find the observer's time or latitude, or to solve other mathematical problems. In its complete form, it consists of a main body, or flat plate (“mater” or “mother”) to which is attached a series of smaller plates (called climates) engraved with various coordinate lines, according to various latitudes. An alidade, a rotatable straight rule with sights used to find altitudes, is fastened to the back. Attached to the front, above the climates, is a smaller fretted circular plate called the rete – this is a moveable map of the heavers, with pointers indicating various stars. The whole rotating assembly is fastened together by a pin through the center of the mater and climates, and it is secured at the top by a wedge‐shaped piece of metal called the horse, after its fanciful resemblance to a horse's head.
To use the astrolabe, an observer would...
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References
Abdi, W. H., et al. Interaction Between Indian and Central Asian Science and Technology in Medieval Times. New Delhi: Indian National Science Academy, 1990.
Bose, D. M., et al. A Concise History of Science in India. New Delhi: Indian National Science Academy, 1971.
Burnett, Charles. Addendum to King Ptolemy and Alchandreus the Philosopher: The Earliest Texts on the Astrolabe and Arabic Astrology at Micy Fleury, and Chartres. Annals of Science 57.2 (2000): 187.
Drachman, A. G. The Plane Astrolabe and the Anaphoric Clock. Centaurus 3 (1954): 183–9.
Gunther, R. T. Astrolabes of the World. London: Holland Press, 1976.
Jaggi, O. P. History of Science, Technology and Medicine in India, esp. Vol. 6–7. Delhi: Atma Ram, 1977–1986.
Kennedy, E. S., Paul Kunitzsch, R. P. Lorch. Abu Ja'far Ahmad ibn 'Abd Allah. The Melon‐Shaped Astrolabe in Arabic Astronomy. Stuttgart: F. Steiner, 1999.
King, David. Islamic Astronomical Instruments. London: Variorum, 1987.
Kuppuram, G. and K. Kumudami. History of Science and Technology in India. Vol. 1–12. Delhi: Sundeep Prakashan, 1990.
Michel, H. Traité de l'Astrolabe. Paris: Gauthier‐Villars, 1947.
Needham, Joseph. Science and Civilisation in China. Cambridge: Cambridge University Press, 1954.
‐‐‐. Heavenly Clockwork. Cambridge: Cambridge University Press, 1960.
Neugebauer, Otto. The Early History of the Astrolabe. Studies in Ancient Astronomy IX 1949. Reprint Isis 40 (1949): 240–56.
North, J. D. The Astrolabe. Scientific American 230 (1974): 96–106.
Saunders, Harold N. All the Astrolabes. Oxford: Senecio, 1984.
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Smith, J.A. (2008). Astrolabe. In: Selin, H. (eds) Encyclopaedia of the History of Science, Technology, and Medicine in Non-Western Cultures. Springer, Dordrecht. https://doi.org/10.1007/978-1-4020-4425-0_8449
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