旋转星球上的根
(原标题: Roots on a Rotating Planet)
2022-07-08
浏览次数: 15
一棵老树的根在一颗旋转的行星上，在这组每20秒长137张的照片中处于中心位置，拍摄于西西里岛北部的一个晚上。数码相机和鱼眼镜头固定在三脚架上，以捕捉戏剧性的延时，因此星星在该地区黑暗的天空中留下了痕迹。当然，这使得我们很容易发现地球的北天极。地球自转轴向太空的延伸是在左上角，在同心星迹弧的中心。银河系也在那里。我们银河系的平面从北到东（从左到右）横跨广阔的视野，形成了一个更宽的漫射星光带。
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With roots on a rotating planet, an old tree is centered in this sequence of 137 exposures each 20 seconds long, recorded one night from northern Sicily. Digital camera and fisheye lens were fixed to a tripod to capture the dramatic timelapse, so the stars trailed through the region's dark sky. Of course that makes it easy to spot the planet's north celestial pole. The extension of Earth's axis of rotation into space is toward the upper left, at the center of the concentric star trail arcs. The Milky Way is there too. The plane of our galaxy stretches across the wide field of view from north to east (left to right) creating a broader luminous band of diffuse starlight.
© Marcella Giulia Pace