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NASA完成南希·格雷斯·罗曼太空望远镜的主镜建造

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2020-09-06 09:36:12 转载来源: cnBeta.COM

美国宇航局正在努力研制下一代天基望远镜,以取代哈勃,让全世界的天文学家和科学家更好地了解宇宙。 未来的太空望远镜之一被称为南希·格雷斯·罗曼,简称 "罗曼太空望远镜"

美国宇航局正在努力研制下一代天基望远镜,以取代哈勃,让全世界的天文学家和科学家更好地了解宇宙。 未来的太空望远镜之一被称为南希·格雷斯·罗曼,简称 "罗曼太空望远镜"。美国宇航局近日宣布,这台将收集和聚焦光线的太空望远镜的主镜已经完成建造

罗曼号将使用直径7.9英尺的镜头来捕捉太空图像,其视野范围是“行业标兵”哈勃号的100倍。美国宇航局罗曼望远镜经理斯科特·史密斯表示,完成主镜是一个令人兴奋的里程碑。一旦被放置在轨道上,罗马太空望远镜将能够穿过尘埃,穿越广阔的空间,利用红外光研究宇宙。

主镜对于任何望远镜来说都是至关重要的,最终天文学家们所能看到的宇宙细节水平与镜头直接相关。镜面越大,望远镜能收集到的光就越多,从而能更精细地分辨宇宙中所看到的特征。罗曼与哈勃使用的镜头大小相同,但重量只有四分之一:重410磅。与哈勃的镜头相比,重量的大幅减轻得益于几十年来技术的改进。该望远镜将有两台科学仪器,包括广场仪和日冕仪。广场仪是一台3亿像素的相机,能够以近100倍的视野提供与哈勃相同的分辨率。

日冕的设计目的则是让望远镜能够看到比主星暗淡近十亿倍的行星,从而能够对系外行星和其他太阳系进行详细研究。

罗曼号将被放置在距离地球93万英里的有利位置,指向太阳的相反方向。

标签: NASA 完成 南希 格雷斯 罗曼 太空 望远镜 主镜 建造


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