宇宙的倒影

2023年9月22日

Cosmos in Reflection
Image Credit & Copyright: Jeff Dai (TWAN)

Explanation: During the day, over 12,000 large mirrors reflect sunlight at the 100-megawatt, molten-salt, solar thermal power plant at the western edge of the Gobi desert near Dunhuang, Gansu Province, China. Individual mirror panels turn to track the sun like sunflowers. They conspire to act as a single super mirror reflecting the sunlight toward a fixed position, the power station’s central tower. During the night the mirrors stand motionless though. They reflect the light of the countless distant stars, clusters and nebulae of the Milky Way and beyond. This sci-fi night skyscape was created with a camera fixed to a tripod near the edge of the giant mirror matrix on September 15. The camera’s combined sequence of digital exposures captures concentric arcs of celestial star trails through the night with star trails in surreal mirrored reflection.

Tomorrow’s picture: analog analemma’s afternoon

宇宙的倒影
影像提供与版权: Jeff Dai（戴建峰） (TWAN)

说明: 在白画时，中国甘肃省敦煌市附近戈壁沙漠西缘的100兆瓦熔盐光热发电站里，12,000多面大镜子反射着阳光。其中的每块镜面，都如向日葵般转动追着太阳，并且合力组成一扇超大镜面，把阳光反射到固定不动的发电站中心塔。然而在夜间，这些镜子却纹丝不动。它们转而反射无数遥远的恒星、星团、银河星云、及后方天体的光芒。这幅摄于9月15日的科幻般夜景，是由固定于庞大镜阵边缘附近的三脚架上之相机拍摄所得。来自这部相机的组合数位影像序列，记录了长夜里的同心圆弧状星轨，以及星轨在镜面的超现实倒影。

明日的图片: analog analemma’s afternoon