page_title: Astrolabe
hierarchical_section_title: Astrolabe
caption_attribution_description: العربية: أسطرلاب إيراني مُسطَّح جديد، صُنع في مدينة تبريز سنة 2013م، على يد یعقوب کوشان. مصنوع من الصفر (النُحاس الأصفر). وهو أداة فلكيَّة قديمة. تصوير مسعود صفرنیا. Azərbaycanca: Yenə İrani Astrolab. Təbrizdə 2013 yılında Yaqub Kuşan əli ile çıxarılmışdır. Bu bir astronomik aləttır və sarı misdən çıxarılmışdır.Şekillər: Məsud Səfərniya. English: A new Iranian flat Astrolabe, made in Tabriz in 2013, by Jacopo Koushan. Made from brass. It is an ancient astronomical tool. Photographs by Masoud Safarniya. فارسی: یک اسطرلاب مسطح سدسی جدید ایرانی ساخته شده توسط یعقوب کوشان در سال 1392 در تبریز. این یک وسیله نجومی است و از فلز برنج ساخته شده. عکسها از&#160;: مسعود صفرنیا Français&#160;: Astrolabe plat iranien, fabriqué à Tabriz en 2013 par Jacopo Koushan. Fait en cuivre. C'est un outil astronomique ancien. Photographie&#160;: Masoud Safarniya. Türkçe: Yeni bir Iran Usturlab'ı. 2013'te İran'da, Tebriz kentinde, Yakup Kuşan üretmiş. Bu astronomi ölçüm cihazı pirinç'ten üretilmiştir.Fotoğrafçı: Masoud Safarnia(Mesut Seferniya).
context_page_description: An astrolabe is an elaborate inclinometer, and can be considered an analog calculator capable of working out several kinds of problems in astronomy. Historically used by astronomers and navigators to measure the altitude above the horizon of a celestial body, day or night, it can be used to identify stars or planets, to determine local latitude given local time, to survey, or to triangulate. It was used in classical antiquity, the Islamic Golden Age, the European Middle Ages and the Age of Discovery for all these purposes.
  The astrolabe's importance not only comes from the early development of astronomy, but is also effective for determining latitude on land or calm seas. Although it is less reliable on the heaving deck of a ship in rough seas, the mariner's astrolabe was developed to solve that problem.
context_section_description: An astrolabe (Ancient Greek: ἀστρολάβος astrolabos; Arabic: ٱلأَسْطُرلاب‎ al-Asturlāb; Persian: ستاره‌یاب‎ Sitārayāb) is an elaborate inclinometer, and can be considered an analog calculator capable of working out several kinds of problems in astronomy. Historically used by astronomers and navigators to measure the altitude above the horizon of a celestial body, day or night, it can be used to identify stars or planets, to determine local latitude given local time (and vice versa), to survey, or to triangulate. It was used in classical antiquity, the Islamic Golden Age, the European Middle Ages and the Age of Discovery for all these purposes.
  The astrolabe's importance not only comes from the early development of astronomy, but is also effective for determining latitude on land or calm seas. Although it is less reliable on the heaving deck of a ship in rough seas, the mariner's astrolabe was developed to solve that problem.
caption: A modern astrolabe made in Tabriz, Iran in 2013.
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