天空布满弧线
(原标题: Sky Full of Arcs)
2024-08-17
浏览次数: 16
8月11日，一枚火箭实验室电子火箭从一颗旋转的行星上发射升空。它的任务是搭载一颗小卫星，名为“满天的sar”（合成孔径雷达卫星），从新西兰北岛的马希亚半岛出发，前往近地轨道。“电子”优雅的发射弧线的火红痕迹在这片南部海域和天空中朝向东方，这张照片是在2.5小时内连续拍摄的50帧合成的。摄像机固定在三脚架上，直接指向南天极，即地球自转轴向太空的延伸。但是在南半球的夜空中没有明亮的恒星标记出这个位置。不过，南天极很容易被发现。它位于填满天空视野的同心圆星迹弧的中心。画廊：2024年英仙座流星雨和极光
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On August 11 a Rocket Lab Electron rocket launched from a rotating planet. With a small satellite on board its mission was dubbed A Sky Full of SARs (Synthetic Aperture Radar satellites), departing for low Earth orbit from Mahia Peninsula on New Zealand's north island. The fiery trace of the Electron's graceful launch arc is toward the east in this southern sea and skyscape, a composite of 50 consecutive frames taken over 2.5 hours. Fixed to a tripod, the camera was pointing directly at the South Celestial Pole, the extension of planet Earth's axis of rotation in to space. But no bright star marks that location in the southern hemisphere's night sky. Still, the South Celestial Pole is easy to spot. It lies at the center of the concentric star trail arcs that fill the skyward field of view. Gallery: Perseid Meteor Shower 2024 and Aurorae
© Rory Gannaway