Arab astronomer and mathematician. Considered the greatest astronomer of his time, he proved the possibility of annular eclipses and introduced an organized table of sines.

• 巴塔尼：(90-973)阿拉伯的天文学家和数学家。被公认是他那个时代最伟大的天文学家，他编制过星表和更为精确的日月运行表，改进了托勒密的天文计算法