This article is to introduce one chapter of al-B?r?n?’s treatise on astrolabe entitled: Kit?b f? ?ilm-i al-Asturl?b (A book on astrolabe knowledge). This chapter is about finding k?ibla direction by Astrolabe. Also, it argues dependence of various astronomical traditions and interaction between astronomy and Islam. World-map centered Mecca and additional graphs on astrolabe are examples for showing this dependence. There are mathematical explanations although they are not goal of this paper.
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