(1693–1762), English astronomer. Bradley was appointed Astronomer Royal in 1742. He discovered the aberration of light and also observed the oscillation of the earth's axis (nutation). His star catalogue was published posthumously.
英语词典包含464360条英英释义在线翻译词条，基本涵盖了全部常用单词的英英翻译及用法，是英语学习的有利工具。