國際空間站與土星相遇
ISS Meets Saturn
來源：A.J. Smadi｜發表日期：2025-07-18
本月，明亮的土星在傍晚的天空中升起，從地球上看，它的星環幾乎是邊緣朝上的。 7 月 6 日清晨，從美國華盛頓州聯邦路的一個地方看去，土星與國際空間站短暫相聚。這幅精心策劃的影像是影片幀的疊加，捕捉到了它們在同一望遠鏡視場中的瞬間會合。國際空間站位於低地球軌道上，空間站和氣態巨行星相距近 14 億公里。它們的表面大小相當，但國際空間站比土星亮得多，為了在疊加影像中清晰可見，環狀行星的亮度被提高了。拍攝國際空間站與土星的會合需要精確的時間和位置。
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.
※ 本文由萌芽機器人自動轉貼自每日一天文圖（Astronomy Picture of the Day，APOD），原文為英文，正體中文是透過 DeepL 翻譯及 OpenCC 進行自動處理，內容僅供參考，若有任何錯誤之處還請見諒！
關於每日一天文圖：每日一天文圖網站是美國國家航空暨太空總署與密西根理工大學提供的服務，網站每天提供一張影像或圖片，並由天文學家撰寫扼要說明其特別之處。