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Ulugh Beg

astronomy
Francis Baily and the Baily Beads

Francis Baily and the Baily Beads

Harald Sack
On May 15, 1836, English astronomer Francis Baily for the first time observed the so-called ‘Baily’s beads‘ during an eclipse of the Sun. For sure you know the effect, although you might not have seen it with your own eyes in nature. But, numerous photographs, pictures, and videos have been published, where the phenomenon can be watched. So what are Beailey’s beads? Solar Eclipse and Baily Beads The Baily’s beads effect is a feature of…
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astronomy
Ulugh Beg – the Mongolian Astronomer Prince

Ulugh Beg – the Mongolian Astronomer Prince

Tabea Tietz
On March 22, 1394, Mongolian astronomer, mathematician and sultan Mīrzā Muhammad Tāraghay bin Shāhrukh, better known as Ulugh Beg was (probably) born. Although the only important Mongol scientist, he was the greatest astronomer of his time. Pursuing this interest he built an observatory at Samarkand. In his observations he discovered a number of errors in the computations of the 2nd-century Alexandrian astronomer Ptolemy, whose figures were still being used. “Religions scatter like…
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