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布拉得雷(James Bradley,1693～1762)英国天文学家,格林尼治天文台第3任台长。生于格洛斯特郡的舍伯恩,卒于该郡的查尔福德。1717年在牛津大学波里奥学院获神学硕士学位,2年后被派往布里兹托教区任牧师。因从小爱好,故经常参加舅父庞德的业余天文观测工作。1718年在哈雷的推荐下,被选为英国皇家学会会员。1721年受聘为牛津大学天文学教授。1742年2月继哈雷之后任格林尼治天文台台长和皇家天文学家。1744年成婚,生有一女。1762年,布拉得雷因患肠炎去世。布拉得雷的主要贡献是,在寻找恒星视差时发现光行差效应和地轴的周期运动即章动。1725年,他发现天龙座γ星在天球上移动与视差位
James Bradley (1693 ~ 1762) British astronomer, the third director of the Greenwich Observatory. Sherborne, born in Gloucestershire, died in the county of Charford. In 1717, he received a master’s degree in theology from Polytechnic University of Oxford at Polio, and two years later he was sent to the parish of Brizzi as a pastor. Because of his hobby, so often participate in uncle amateur astronomical observations. In 1718 at Harley’s recommendation, was elected to the Royal Society. In 1721 employed as a professor of astronomy at Oxford University. February 1742 Following Harley served as director of the Greenwich Observatory and Royal Astronomer. Married in 1744, born a girl. Bradsley died of enterocolitis in 1762. The main contribution of Bradsley is that when looking for the stellar parallax, it finds the effect of optical aberration and the periodic motion of the earth’s axis, ie the nutation. In 1725, he discovered that the ghosted gamma star moves in the celestial sphere with parallax