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William Herschel's Extraordinary Night of Discovery

机译：威廉·赫歇尔（William Herschel）的非凡发现之夜

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There's little doubt that William Herschel was the most significant astronomer of the 18th century. His accomplishments included the discovery of Uranus, infrared radiation, and four planetary satellites, as well as the compilation of two extensive catalogues of double and multiple stars. His most lasting achievement, however, was his exhaustive search for undiscovered star clusters and nebulae, a key component in his quest to understand what he called "the construction of the heavens." In Her-schel's time, astronomers were concerned principally with the study of solar system objects. The search for clusters and nebulae was' up to that point, a haphazard affair, with a total of only 138 recorded by all the observers in history. Even the celebrated Charles Messier, responsible for the discovery of 40' regarded nebulae as nuisance objects to be avoided during the search for comets.
机译：毫无疑问，威廉·赫歇尔（William Herschel）是18世纪最重要的天文学家。他的成就包括天王星，红外辐射和四颗行星卫星的发现，以及两个双星和多星的广泛目录汇编。然而，他最持久的成就是他对未发现的星团和星云的详尽搜索，这是他寻求理解他所谓的“天国建设”的关键组成部分。在赫歇尔时代，天文学家主要关注太阳系物体的研究。到那时，寻找星团和星云才是偶然的事情，历史上所有观测者总共只记录了138个。甚至负责发现40'的著名查尔斯·梅西耶（Charles Messier）都将星云视为在寻找彗星过程中应避免的令人讨厌的物体。

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