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单词 Great Observatories
释义

Great Observatories

中文百科

大型轨道天文台计划 Great Observatories program

(重定向自Great Observatories)

大型轨道天文台计划Great Observatories)是美国宇航局研制的4颗大型空间望远镜,分别是哈勃空间望远镜、康普顿伽玛射线天文台、钱德拉X射线天文台和斯皮策空间望远镜。它们分别工作在不同的波段,每台望远镜都为各自的领域做出了重要的贡献。

大型轨道天文台计划的初衷是将不同电磁波段的天文学研究各自推进一个时代。由于红外线、X射线和伽玛射线不能穿透地球大气层,因此只能通过空间天文观测获得信息。康普顿伽玛射线天文台和钱德拉X射线望远镜都在口径或者分辨率上比前一代天文卫星提高了一个数量级,斯皮策空间望远镜虽不比之前的空间红外望远镜(ISO)口径大很多,但是得益于红外探测设备的快速发展,性能上有了很大的提高。哈勃空间望远镜也充分利用了处于大气层以外、不受气辉干扰的优势,能够拍摄到比地面大型光学望远镜所能观测到的更暗弱的天体。

英语百科

Great Observatories program 大型轨道天文台计划

(重定向自Great Observatories)
Four Great Observatories
Chandra, Hubble, and Spitzer image of the Crab Nebula
IXO was considered as a possible future X-ray observatory
Calisto architecture for SAFIR was one concept for a future Far-infrared telescope[12]

NASA's series of Great Observatories satellites are four large, powerful space-based astronomical telescopes. Each of the four missions was designed to examine a specific wavelength/energy region of the electromagnetic spectrum (gamma rays, X-rays, visible and ultraviolet light, infrared light) using very different technologies. Dr. Charles Pellerin, NASA's Director, Astrophysics invented and developed the program. The four Great Observatories were launched between 1990 and 2003, and three remain operational as of 2016.

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更新时间:2025/6/23 9:59:10