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Pandora is the fourth of Saturn1's known satellites: orbit: 141,700 km from Saturn diameter: 84 km (114 x 84 x 62) mass: 2.2e17 kg In Greek mythology2 Pandora was the first woman, bestowed3 upon humankind by Zeus as a punishment for Prometheus' theft of fire. Entrusted4 with a box containing all the ills that could plague people, she opened it out of curiosity and thereby5 released all the evils of human life; wife of Epimetheus. Discovered by Collins and others in 1980 from Voyager photos. Pandora is the outer shepherd satellite of the F ring. The image at right shows both Pandora, the faint F ring, Prometheus and part of the A ring. (Click the image for a much finer image from Cassini) Craters6 formed on this object by impacts appear to be covered by debris7, a process that probably happens rapidly in a geologic8 sense. The grooves9 and small ridges10 on Pandora suggest that fractures affect the overlying smooth material. Pandora 是土星已知卫星中距其第四近的一颗: 公转轨道:距土星 141,700 千米 卫星直径:84 千米(114×84×62) 质量:2.2e17 千克 在希腊神话中,潘多拉是由于普罗米修斯偷火种,被宙斯派来惩罚人类的第一个女人。她被要求保管一只盒子,里面装着所有能够危害人类的灾祸。她出于好奇找开了这个盒子,因此释放了所有人类生活中的罪恶。潘多拉是Epimetheus的妻子。 这颗卫星于1980年被Collins和他的同伴从旅行者号的照片上发现。 土卫十七是F光环外的牧羊卫星。从右边的图片上可看到土卫十七和不明显的F光环,土卫十六及A光环的部分。 这颗卫星上的陨石坑比附近的土卫十六上的更大,土卫十七至少有两个直径大约30千米的大陨石坑。但是它没有长条形的山脉和峡谷。 点击收听单词发音
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