拉古萨上空的星轨
2020 March 28
Stars Trail over Ragusa
Image Credit & Copyright: Gianni Tumino
Explanation: In trying times, stars still trail in the night. Taken on March 14, this night skyscape was made by combining 230 exposures each 15 seconds long to follow the stars’ circular paths. The camera was fixed to a tripod on an isolated terrace near the center of Ragusa, Italy, on the island of Sicily. But the night sky was shared around the rotating planet. A friend to celestial navigators and astrophotographers alike Polaris, the north star, makes the short bright trail near the center of the concentric celestial arcs.
Tomorrow’s picture: Orion, Orion, Orion
拉古萨上空的星轨
影像来源及版权：Gianni Tumino
说明：在这艰难的时日，星星依然在夜空中转动。这张拍摄于3月14日的夜景照片是由每次曝光15秒的230张图片组合而成，显示出星星圆形的轨迹。相机被固定在意大利西西里岛拉古萨中心附近的一个独立露台的三脚架上。夜空随着地球的转动而转动。天球上这些同心弧中心附近明亮的短线，就是天体摄影师的好友——为人们指示方向的北极星。
明日一图预告：Orion，Orion，Orion
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