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埃德蒙·哈雷(1656～l742年)1687年,伊萨克·牛顿出版著作《数学原理》,阐述了如何以约两个月为时间间隔,通过三次精确测量彗星的位置来计算彗星轨道的方法。他在1680年用这种方法计算了大彗星的轨道。但是,这一方法的前提是,彗星的轨道必须是抛物线形的,也就是说,要假设彗星来自无穷远的地方,经过太阳,再飞向一个无穷远的地方。牛顿收集了另23颗彗星的记录,但他没有时间,也厌倦了对它们的运动做艰难乏味的计算。他把数据交给了他的朋友,英国皇家学会会员埃德蒙·哈雷。
Edmund Halley (1656-1742) Isaac Newton published his book “The Principles of Mathematics” in 1687. He described how to calculate the orbit of a comet by accurately measuring the position of a comet for about two months. method. He used this method to calculate the orbit of the big comet in 1680. However, the premise of this method is that the orbit of the comet must be parabolic, that is, to assume that the comet is from infinity, passes through the sun, and then flies toward an infinity. Newton collected a record of 23 other comets, but he had no time and was tired of doing tedious calculations of their movements. He handed over the data to his friend Edmond Halley, member of the Royal Society of England.