20210515 帕瑞纳天文台的望远镜和星迹 必应壁纸

帕瑞纳天文台 帕瑞纳天文台的望远镜和星迹 不，这不是一场光剑暴雨，但也不是典型的夜空。在智利荒凉的阿塔卡马沙漠的山顶上，在帕瑞纳天文台观星，你将获得南部天空最清晰的裸眼视野之一。这种“光剑”效应来自于照片的长时间曝光:我们看到的是由于地球的自转，这些恒星在夜空中划过的轨迹。这些耀眼的颜色代表了温度，从寒冷的红色(华氏5000度左右)到温暖的蓝色(几万度)。那星空下的那些建筑呢?它们是组成“超大望远镜”(Very Large Telescope)的八个望远镜中的三个。“超大望远镜”是欧洲南方天文台(European Southern Observatory)的一个项目，名字很贴切。如果你要在月球表面驾驶一辆汽车(我们不建议这样做)，VLT可以给你的车灯拍一张清晰的照片。

原文:

No, that's not a downpour of lightsabers—but it's no typical night sky either. Stargazing here at Paranal Observatory, on a mountaintop in Chile's desolate Atacama Desert, you'll get one of the clearest possible naked-eye views of the southern skies. This 'lightsaber' effect comes from the photo's long exposure: What we're seeing is these stars' paths as they track across the night sky due to our planet's rotation. The dazzling colors indicate temperature, from chilly red (5,000-ish degrees Fahrenheit) to balmy blue (temps in the tens of thousands).What about those structures beneath the starry sky? They're three of the eight telescopes making up the Very Large Telescope, an aptly named project of the European Southern Observatory. Together the telescopes compose photographs of astronomically fine focus: If you were to drive a car on the surface of the moon (which we don't advise trying), the VLT could snap a crystal-clear shot of your headlights.

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