望向宇宙的巨眼将于10年内建成

daoxianhuo

据悉，于2010年立项的欧洲极大天文望远镜项目总耗资近11亿欧元，由欧洲南方天文台的十五个会员国共同承建。目前第一阶段所需的1生姜擦白癜风有效吗0亿欧元已经到位，其中相当一部分的资金将用于建造望远镜的主体和自适应光学系统。按计划，欧洲极大望远镜将在10年内建成，生姜擦白癜风有效吗并预计于2024年开始运行。

欧洲极大望远镜重量约2500吨，主镜直径39米，由798个六边形镜片拼接组成，集光白癜风需要吃什么药面积达978平方米，镜面面积超过两个篮球场。巨大的镜片为其带来了最强的视力，它的集光能力比现有最大光学望远镜强13倍，图像清晰度能达到哈勃太空望远镜白癜风吃啥药好的16倍。同时，E-ELT还设计有独创的自适应光学系统，该系统由五个镜面组成，能减少大气湍流对观测的干扰，进一步提高图像的光学质量。

即将开工的望远镜选址，确定在智利阿塔卡玛沙漠中海拔3060米的塞鲁阿玛逊斯山(Cerro Armazones)，在搬移工程运走22万立方米的土石后，E-ELT将稳坐于削平的山巅。在有世界干极之称的阿塔卡玛沙漠，全年有超过320个的晴朗夜晚，水汽极少，空气条件稳定，适宜天文观测，它是世界上最干燥、光污染最稀少的地点之一，也是全球最佳的天文观测点之一，目前已有多处大型天文观测设备选址于此。新消法明年315实施网购包装拆封不影响退货

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