Copyright:
原文:
What’s happening in this strange juxtaposition of moon and planet? First and foremost, Saturn’s moon Dione was captured here in a dramatic panorama by the robotic Cassini spacecraft currently orbiting the giant planet. The bright and cratered moon itself spans about 1100-km, with the large multi-ringed crater Evander visible on the lower right. Since the rings of Saturn are seen here nearly edge-on, they are directly visible only as a thin horizontal line that passes behind Dione. Arcing across the bottom of the image, however, are shadows of Saturn’s rings, showing some of the rich texture that could not be seen directly. In the background, few cloud features are visible on Saturn. The featured image was taken during the last planned flyby of Dione by Cassini, as the spacecraft is scheduled to dive into Saturn’s atmosphere during 2017. Teachers: Find classroom astronomy images through APOD’s Index or Search engine.
中文翻譯:
🌌 在這個奇妙的畫面中，我們可以看到土星的衛星迪奧尼（Dione）被機器人探測器卡西尼（Cassini）捕捉到的壯觀全景。這顆明亮而滿佈隕石坑的衛星直徑約 1100 公里，圖片右下角清晰可見大型多環隕石坑埃凡德（Evander）。
因為土星的環在這裡幾乎呈邊緣視角，環的部分只有一條細細的橫線穿過迪奧尼。然而，底部的影子展現了土星環的豐富紋理，這些細節是無法直接看到的。在背景中，我們可以隱約看到土星的幾個雲層特徵。
這幅圖片是在卡西尼計劃中對迪奧尼進行的最後一次飛掠時拍攝的，之後這艘探測器將於 2017 年進入土星的氣氛。 🌌
#土星 #迪奧尼 #卡西尼 #宇宙探索 #行星與衛星 #太空攝影 #航天科學 #天文學 #環狀星球 #宇宙奧秘
來源:NASA每日圖片
