土衛六土星上空的月亮
Titan: Moon over Saturn

發表日期:2025-05-03
與地球的衛星一樣,土星最大的衛星土衛六也與它的行星同步旋轉。卡西尼號飛船於 2012 年 5 月記錄的這組馬賽克影像顯示了土衛六的反土星面,即始終朝向環狀氣體巨行星的一面。土衛六是太陽系中唯一擁有稠密大氣層的衛星,也是太陽系中除地球外唯一已知表面有液體積聚體的世界,並存在類似地球的液態雨和蒸發週期。在卡西尼號拍攝的土衛六光環和雲頂上空直徑 5000 公里的衛星的檢視中,土衛六的高空大氣霧層非常明顯。近中心處是被稱為香格里拉的佈滿沙丘的黑暗區域。卡西尼號運送的惠更斯號探測器停在下方中間偏左的位置,這是距地球最遙遠的太空飛行器著陸後的景象。
原文:Like Earth's moon, Saturn's largest moon Titan is locked in synchronous rotation with its planet. This mosaic of images recorded by the Cassini spacecraft in May of 2012 shows its anti-Saturn side, the side always facing away from the ringed gas giant. The only moon in the solar system with a dense atmosphere, Titan is the only solar system world besides Earth known to have standing bodies of liquid on its surface and an earthlike cycle of liquid rain and evaporation. Its high altitude layer of atmospheric haze is evident in the Cassini view of the 5,000 kilometer diameter moon over Saturn's rings and cloud tops. Near center is the dark dune-filled region known as Shangri-La. The Cassini-delivered Huygens probe rests below and left of center, after the most distant landing for a spacecraft from Earth.
※ 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!
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