波多黎各的阿雷西博天文台望远镜直径仅300米。
Puerto Rico's Arecibo Observatory is only 300 meters in diameter.
接收器安装在距阿雷西博碟盘500尺高的格利高里圆顶上。来自：康翠斯全美保险总监协会- 阿雷西博天文台，美国国家科学基金会设施。
The multi-beam in its place inside the Gregorian dome, 500 feet above the Arecibo dish. Credit: Courtesy of the NAIC - Arecibo Observatory, an NSF facility.
接收器安装在距阿雷西博碟盘500尺高的格利高里圆顶上。来自：康翠斯全美保险总监协会- 阿雷西博天文台，美国国家科学基金会设施。
The multi-beam in its place inside the Gregorian dome, 500 feet above the Arecibo dish. Credit: Courtesy of the NAIC - Arecibo Observatory, an NSF facility.
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