The sun crosses the sky roughly 180 times in an extremely long-exposure "solargraph" released by the Chile-based European Southern Observatory (ESO) on September 22.
9月22日由欧南方天文台智利点发布的极端长曝光的“日轨图”中太阳横穿天空约180次。
The sun crosses the sky roughly 180 times in an extremely long-exposure "solargraph" released by the Chile-based European Southern Observatory (ESO) on September 22.
9月22日由欧南方天文台智利点发布的极端长曝光的“日轨图”中太阳横穿天空约180次。
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