|
Astrolab selanjutnya dimajukan di [[dunia Islam Zaman Pertengahan]], tempat [[ahli falak]] Muslim memperkenalkan skala sudut kepada astrolab,<ref>See p. 289 of {{Citation
| doi = 10.1088/1475-4878/24/5/302| issn = 1475-4878| volume = 24| issue = 5| pages = 289–303| last = Martin| first = L. C.| title = Surveying and navigational instruments from the historical standpoint| journal = Transactions of the Optical Society| date = 1923| url = http://iopscience.iop.org/1475-4878/24/5/302/
| postscript = .|bibcode = 1923TrOS...24..289M }}</ref> lalu menambah bulatan yang menandakan [[azimuthazimut]] di atas [[horizonufuk]].<ref>{{citation|title=The Mathematics of Egypt, Mesopotamia, China, India, and Islam: a Sourcebook|author=Victor J. Katz & Annette Imhausen|publisher=[[Princeton University Press]]|date=2007|isbn=0-691-11485-4|page=519}}</ref> Ia digunakan secara meluas di serata dunia Islam, sebahagian besarnya sebagai bantuan kemudi dan sebagai cara mencari arah [[kiblat]]. Orang pertama yang dianggap membuat astrolab di dunia Islam ialah dilaporkan bernama [[Muhammad al-Fazari]], ahli matematik kurun ke-8.<ref>[[Richard Nelson Frye]]: ''Golden Age of Persia''. p. 163</ref> Latar belakang matematik dimantapkan oleh ahli falak Muslim yang bernama [[Muhammad ibn Jābir al-Harrānī al-Battānī]] di dalam karya beliau ''Kitab az-Zij'' (sekitar 920 M), yang diterjemahkan ke [[bahasa Latin]] oleh [[Plato Tiburtinus]] dengan judul ''De Motu Stellarum''. The [http://www.historyofinformation.com/expanded.php?id=2340 earliest surviving dated astrolabe] is dated [[Islamic calendar|AH]] 315 (927/8 AD). In the Islamic world, astrolabes were used to find the times of sunrise and the rising of fixed stars, to help schedule morning prayers ([[salat]]). In the 10th century, [[al-Sufi]] first described over 1,000 different uses of an astrolabe, in areas as diverse as [[astronomy]], [[Islamic astrology|astrology, horoscope]]s, [[Mariner's astrolabe|navigation]], [[surveying]], [[time]]keeping, [[prayer]], [[Salat]], [[Qibla]], etc.<ref>Dr. Emily Winterburn ([[National Maritime Museum]]), [http://www.muslimheritage.com/topics/default.cfm?ArticleID=529 Using an Astrolabe], Foundation for Science Technology and Civilisation, 2005.</ref><ref>{{cite book |last1=Lachièz-Rey |first1=Marc |last2=Luminet |first2=Jean-Pierre |others=Trans. Joe Laredo |title=Celestial Treasury: From the Music of Spheres to the Conquest of Space |date=2001 |publisher=Cambridge University Press |location=Cambridge, UK |isbn=978-0-521-80040-2 |page=74}}</ref>
==Rujukan==
|
