阅读材料回答下列问题。天文台是人们探索星空和自然奥秘的场所,然而,随着城市的快速发展,很多天文台不得不通过远迁,来寻找已经很少见的灿烂星空。英国格林尼治天文台于1948年迁往东南沿海的苏塞克斯郡赫斯特蒙苏堡。南京紫金山天文台建设江苏盱眙观测站;云南昆明凤凰山天文台在丽江高美古建立观测站,等等。由于电灯的发明,城市中的夜晚已经如同白昼。20 read the article, answer the questions below. The Observatory is a place for people to explore the mysteries of the stars and the nature. However, with the rapid development of the city, many observatories have to move far to find the rare and splendid sky. The Greenwich Observatory was relocated to Hurst Mont Fort in Sussex on the southeast coast in 1948. Nanjing Purple Mountain Observatory to build Jiangsu 盱 眙 Observatory; Yunnan Kunming Phoenix Mountain Observatory in the United States established an ancient Observatory in Lijiang, and so on. Due to the invention of electric lights, the night in the city is already like daylight. 20