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贝塞尔是近代天文学史上具有里程碑似的人物,他对天文学发展有诸多贡献,在数学方面也提出了贝塞尔函数。他的祖国德国在他诞生200周年之际的1984年发行了面值100芬尼的邮票纪念这位科学家。邮票的画面(如图)是他的头像和他创造的贝塞尔函数曲线。 贝塞尔(1784～1846)是普鲁士明登人。他15岁做学徒,并自学航海、天文、数学方面的知识,很快便显示出其在天文学方面的才能。1804年他20岁时,重新计算哈雷慧星轨道引起科学界注意。1810年他奉命组建德国柯尼斯堡天文台,并任台长。贝塞尔工作勤奋,在1821～1833年间他测定了75000多
Bessel is a landmark figure in the history of modern astronomy. He has made a lot of contributions to the development of astronomy and also proposed Bessel functions in mathematics. Germany, his home country, commemorated the scientist in 1984 on the occasion of the 200th anniversary of his birth with a stamp of 100 Finnish denominations. The picture of the stamp (pictured) is his avatar and the Bezier curve he created. Bessel (1784 ~ 1846) is a Prussian Minden. He was an apprentice at the age of 15 and taught by self-study navigation, astronomy, mathematics and soon showed his talent in astronomy. When he was 20 years old in 1804, recalculation of the Halley’s orbit attracted the attention of the scientific community. In 1810 he was ordered to form the Königsberg Observatory in Germany and became the director. Bessell worked diligently and measured more than 75,000 between 1821 and 1833