Copyright:
Wang Chao
中文翻譯:
有一天，小朋友們在天文館裡發現了一個神奇的圖片。這張圖片看起來像一條美麗的星際尾巴，但其實它並不是一顆彗星的尾巴！圖片上顯示的是一群圍繞地球飛行的衛星，這群小衛星叫做Starlink，它們在六月份的時候一起飛過。當這些衛星在低地球軌道反射陽光時，正好在中國內蒙古的日出之前，讓人們在照片中看到了它們。雖然這些衛星在天空中看起來像小亮點，但因為相機拍了20秒，所以它們變成了小小的光線。現在已經有超過9000顆Starlink衛星在天空中飛行，每個星期都會有新的衛星被發射上天！還有其他的衛星群也正在計劃中呢。真是太神奇了！
原文:
Yes, but can your comet tail do this? No, and what you are seeing is not the tail of a comet. The picture features a cleverly overlayed time-lapse sequence of a group of satellites orbiting Earth together in June. Specifically, these are Starlink communications satellites in low Earth orbit reflecting back sunlight before sunrise to Inner Mongolia, China. Although the satellites appear to the human eye as points, the 20-second-long camera exposures caused them to appear as short streaks. Currently there are over 9000 Starlinks in orbit, with more being launched nearly every week. Other satellite constellations are also being planned. Explore the Universe: Random APOD Generator
來源:NASA每日圖片
