1781年,天文学家赫歇尔发现了天王星。这个发现验证了当时流行的“提丢斯——波得定则”。根据这个定则,科学家们推算出在距离太阳不远的地方也应该有一颗行星。众多的天文学家和天文爱好者都想成为第一个发现这颗行星的人。1801年新年的晚上,意大利天文学家皮亚齐正在聚精会神地观察着星空。突然,一颗非常小的星星出现在他的视野里。他坚信这颗小星星就是人们一直没有发现的那颗行星。 In 1781, astronomer Herschel discovered Uranus. This finding validated the prevailing “Titus - Porter's rule.” According to this rule, scientists have figured out that there should be a planet not far from the sun. Numerous astronomers and astronomy enthusiasts want to be the first to discover the planet. In the night of 1801 New Year, Italian astronomer Piazzas was attentively watching the stars. Suddenly, a very small star appeared in his field of vision. He firmly believes that this tiny star is the planet that one has never discovered.