Behind Dione, hints of atmospheric banding can be seen on the North Pole of hazy Titan, the only known moon with a fully developed atmosphere.
在土卫四的背后，可以看到在模糊的土卫六北极上的大气带的迹象，土卫六是目前仅知的具有完全成熟大气层的卫星。
As it zipped past Saturn's moon Dione this past weekend, NASA's Cassini spacecraft got its best look yet at the northern pole of this small, cratered moon.
环绕土星运行的一颗卫星上快速飞过，并且对这颗坑坑洼洼的小行星的北部地区进行了目前为止最为清晰的拍照。
The double-moon effect is aided by the matching reflectivity of Dione (top), which is closer to the camera, and Rhea, which is farther away but slightly larger than Dione.
这种双卫效果受益于离摄像机较近的狄俄涅（土卫四）和离摄像机较远但是比前者稍大些的瑞亚（土卫五）一致的反射率。
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