日期：2008-07-30 Cordelia is the innermost of Uranus' known satellites: orbit: 49,752 km from Uranus diameter: 26 km Cordelia is a daughter of Lear in Shakespeare's King Lear. Discovered by Voyager 2 in 1986. Cordelia appears to be the inner shepherding satellite fo... 阅读全文>>

日期：2008-07-30 天王星是太阳系中离太阳第七远行星，从直径来看，是太阳系中第三大行星。天王星的体积比海王星大，质量却比其??公转轨道: 距太阳2,870,990,000 千米 (19.218 天文单位) 行星直径: 51,118 千米（赤道） 质量: 8.683e25 千克 乌拉诺斯是古希腊神话中的宇宙之神，是最早... 阅读全文>>

日期：2008-07-30 Uranus is the seventh planet from the Sun and the third largest (by diameter). Uranus is larger in diameter but smaller in mass than Neptune. orbit: 2,870,990,000 km (19.218 AU) from Sun diameter: 51,118 km (equatorial) mass: 8.683e25 kg Hardcopy Th... 阅读全文>>

日期：2008-07-30 这是一份未确认的被报告发现的土星卫星的暂定命名与公转半径表： 命名 距离 （千米） S/1981 S 7 S/1981 S 10 S/1981 S 11 S/1981 S 14 200000? S/1981 S 15 174000 S/1981 S 16 220000 S/1981 S 17 231000 S/1981 S 18 185000 S/1981 S 19 186000 S/1995 S 1 137450 S... 阅读全文>>

日期：2008-07-30 Phoebe is the outermost of Saturn's known satellites. Phoebe is almost 4 times more distant from Saturn than its nearest neighbor (Iapetus). orbit: 12,952,000 km from Saturn diameter: 220 km mass: 4.0e18 kg Phoebe is the daughter of Uranus and Gaia;... 阅读全文>>

日期：2008-07-30 Iapetus is the seventeenth of Saturn's known satellites and the third largest: orbit: 3,561,300 km from Saturn diameter: 1460 km mass: 1.88e21 kg In Greek mythology Iapetus was a Titan, the son of Uranus, the father of Prometheus and Atlas and an an... 阅读全文>>

日期：2008-07-30 Hyperion is the sixteenth of Saturn's known satellites: orbit: 1,481,100 km from Saturn diameter: 286 km (410 x 260 x 220) mass: 1.77e19 kg In Greek mythology Hyperion was a Titan, the son of Gaea and Uranus and the father of Helios. Discovered by B... 阅读全文>>

日期：2008-07-30 土卫六是土星的已知卫星中距其第十五近的一颗： 公转轨道：距土星 1,221,830 千米 卫星直径：5150 千米 质量：1.35e23 千克 在希腊神话里，泰坦是一个巨人家族，乌拉诺斯和该亚的孩子。他想支配天堂，但是被宙斯家族推翻并取代了。 它是在1655年由惠更斯发现的。 人们... 阅读全文>>

日期：2008-07-30 Titan is the fifteenth of Saturn's known satellites and the largest: orbit: 1,221,830 km from Saturn diameter: 5150 km mass: 1.35e23 kg In Greek mythology the Titans were a family of giants, the children of Uranus and Gaia, who sought to rule the he... 阅读全文>>

日期：2008-07-30 Rhea is the fourteenth of Saturn's known satellites and the second largest: orbit: 527,040 km from Saturn diameter: 1530 km mass: 2.49e21 kg In Greek mythology Rhea was the sister and wife of Cronus (Saturn) and the mother of Demeter, Hades (Pluto),... 阅读全文>>

日期：2008-07-30 Helene is the thirteenth of Saturn's known satellites: orbit: 377,400 km diameter: 33 km (36 x 32 x 30) Helene is the name of an Amazon who battled with Achilles. Discovered by Laques and Lecacheux in 1980 from ground-based observations. Helene is i... 阅读全文>>

日期：2008-07-30 Dione is the twelfth of Saturn's known satellites: orbit: 377,400 km from Saturn diameter: 1120 km mass: 1.05e21 kg In Greek mythology Dione was the mother of Aphrodite (Venus) by Zeus (Jupiter). Discovered by Cassini in 1684. Dione is the densest o... 阅读全文>>

日期：2008-07-30 Calypso is the eleventh of Saturn's known satellites: orbit: 294,660 km from Saturn diameter: 26 km (34 x 22 x 22) In Greek mythology Calypso was a sea nymph who delayed Odysseus on her island for seven years. Discovered by Pascu, Seidelmann, Baum a... 阅读全文>>

日期：2008-07-30 Telesto is the tenth of Saturn's known satellites: orbit: 294,660 km from Saturn diameter: 29 km (34 x 28 x 36) In Greek mythology Telesto was a daughter of Oceanus and Tethys. Discovered by Smith, Reitsema, Larson and Fountain in 1980 from ground-b... 阅读全文>>

日期：2008-07-30 Tethys is the ninth of Saturn's known satellites: orbit: 294,660 km from Saturn diameter: 1060 km mass: 6.22e20 kg In Greek mythology Tethys was a Titaness and sea goddess who was both sister and wife of Oceanus. Discovered by Cassini in 1684. Tethy... 阅读全文>>

日期：2008-07-30 Enceladus is the eighth of Saturn's known satellites: orbit: 238,020 km from Saturn diameter: 498 km mass: 7.30e19 kg In Greek mythology Enceladus was a Titan who was defeated in battle and buried under Mount Etna by Athena. Discovered in 1789 by He... 阅读全文>>

日期：2008-07-30 Mimas is the seventh of Saturn's known satellites: orbit: 185,520 km from Saturn diameter: 392 km mass: 3.80e19 kg Mimas was one of the Titans slain by Hercules. Discovered in 1789 by Herschel. Mimas' low density (1.17) indicates that it is composed... 阅读全文>>

日期：2008-07-30 Janus is the sixth of Saturn's known satellites: orbit: 151,472 km from Saturn diameter: 178 km (196 x 192 x 150) mass: 2.01e18 kg Janus was the god of gates and doorways, depicted with two faces looking in opposite directions; also the root of the... 阅读全文>>

日期：2008-07-30 Epimetheus is the fifth of Saturn's known satellites: orbit: 151,422 km from Saturn diameter: 115 km (144 x 108 x 98) mass: 5.6e17 kg Epimetheus was the son of Iapetus and brother of Prometheus and Atlas; husband of Pandora. Epimetheus is Greek for... 阅读全文>>

日期：2008-07-30 Pandora is the fourth of Saturn's known satellites: orbit: 141,700 km from Saturn diameter: 84 km (114 x 84 x 62) mass: 2.2e17 kg In Greek mythology Pandora was the first woman, bestowed upon humankind by Zeus as a punishment for Prometheus' theft o... 阅读全文>>