Ibn Yunus
Ibn Yunus (d 1009) is one of the Muslim Pioneers of Astronomy, in his observation endeavours included, amongst others more than 10, 000 entries of the sun's position throughout the years using a large astrolabe of nearly 1.4 m in diameter. His work, in French edition, was centuries later an inspiration for Laplace in his determination of the `Obliquity of the Ecliptic' and the `Inequalities of Jupiter and Saturn's.'The famous european astronomer, Newcomb also used his observations of eclipses in the motions of the moon.Source: http://en.wikipedia.org/wiki/Ibn_Yunus
: http://en.wikipedia.org/wiki/Ibn_Yunus_(crater)
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