那年，意大利巴勒莫天文台的天文学家乔治白·皮亚齐发现了一个他认为是行星的天体。

That year, the astronomer Giuseppe Piazzi in Palermo, Italy, discovered what he thought was a planet.

youdao

那年，意大利巴勒莫天文台的天文学家乔治白·皮亚齐发现了一个他认为是行星的天体。

That year, the astronomer Giuseppe Piazzi in Palermo, Italy, discovered what he thought was a planet.

youdao