Mimas, at the upper right, has an enormous impact crater on one side, and Tethys, at the bottom, has a huge rift zone called Ithaca Chasma that runs nearly three-quarters of the way around the moon.
右上角的是土卫一，在它上面的一边上，有着一个巨大陨石坑；底部的是土卫三，上面有一个巨大的、称为伊萨卡峡谷的裂谷带，它几乎占了该卫星绕行路线的四分之三。
Another moon, Telesto, orbits in front of Tethys, creating a grouping unique to the Saturnian system known as trojan moons.
较特斯提卫星，另外一颗土星卫星——土卫十三的轨道更加靠近土星，由它们共同创建出一组独特的土星卫星系，被称做“特洛伊卫星”。
The Cassini spacecraft snapped this shot in February as it swooped past Calypso, which trails behind the larger moon Tethys in roughly the same orbit around Saturn.
这张照片是在今年2月份，卡西尼号宇宙飞船从卡里索普上方快速飞过时拍摄到的。 卡里索普星的轨道在土星第二大卫星特提斯的后方，二者围绕土星旋转的轨道大致相同。
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