Copyright:A.J. Smadi
中文翻譯:
這個月，明亮的土星在晚上出現在天空中，當從地球觀看時，它的環幾乎是邊緣朝上的。而在7月6日的清晨，它和國際太空站短暫合影，這是在美國華盛頓州聯邦路的一個地方觀察到的。這張經過精心策劃的圖片是由一系列視頻幀疊加而成，捕捉了它們在同一望遠鏡視野中的瞬間會合。由於國際太空站位於低地球軌道，太空站和這顆氣體巨星相隔近14億公里。它們的顯現大小相似，但國際太空站要比土星亮得多，而為了在這張疊加的圖片中更好地看到土星，土星的亮度被提高了。要捕捉到國際太空站和土星的合相，需要精確的時間和準確的地點。
原文:
This month, bright planet Saturn rises in evening skies, its rings oriented nearly edge-on when viewed from planet Earth. And in the early morning hours on July 6, it posed very briefly with the International Space Station when viewed from a location in Federal Way, Washington, USA. This well-planned image, a stack of video frames, captures their momentary conjunction in the same telescopic field of view. With the ISS in low Earth orbit, space station and gas giant planet were separated by almost 1.4 billion kilometers. Their apparent sizes are comparable but the ISS was much brighter than Saturn and the ringed planet’s brightness has been increased for visibility in the stacked image. Precise timing and an exact location were needed to capture the ISS/Saturn conjunction.
來源:NASA每日圖片
