Improved Estimation of the Positions of Uranian Satellites from CCD Observations;
1995年天王星卫星位置观测的重新归算
The positions of 5 Uranian satellites on the previous CCD images are measured anew with the aid of the high-precision and high-dense star catalog UCAC2,the different methods are applied to the calibrating measurements,and the theoretical positions of Uranian satellites are calculated by using the two theoretical models(GUST86 and GUST06).
本文中天卫一和天卫三的结果与"亮卫星定标法"的结果在精度上相当,天卫二的位置精度与其他天王星卫星的位置精度具有较好的一致性,这从另一方面证明了我们的"亮卫星定标法"的可靠性。
Contemporary quantitative theories on the motion of the Uranian satellites have been promoted.
1986年“旅行者2号”飞越天王星期间,由空间无线电和光学观测获得的卫星资料首次给出天王星5颗主要卫星质量的可靠估计,从而推动了现代天王星卫星运动定量理论的建立。
The satellite of Uranus that is closest to the planet.
米兰达距离天王星最近的天王星卫星
The satellite of Uranus that is fourth in distance from the planet.
天卫三距离天王星第四远的天王星卫星
The satellite of Uranus that is second in distance from the planet.
天卫一距离天王星第十四远的天王星卫星
The satellite of Uranus that is third in distance from the planet.
天卫二距离天王星第三远的天王星卫星
The planets of our solar system are Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus and Neptune.
我们太阳系的行星有水星、金星、地球、火星、木星、土星、天王星、海王星。
The classical planets are: Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus and Neptune.
这八颗经典行星分别是：水星、金星、火星、木星、土星、天王星和海王星。
The planets of our solar system are Mercury, Venus, Earth, Mars, Jupiter, Saturn, Uranus, Neptune and Pluto.
我们太阳系的行星有水星、金星、地球、火星、木星、土星、天王星、海王星和冥王星。
Was Neptune's gravity strong enough to explain the motion of Uranus?
海王星引力能够足以解释天王星的运动吗？
However, Neptune does not turn on its side the way Uranus does.
然而，海王星不像天王星那样朝一边倾斜旋转。
"Voyager 2 traveled more slowly, flying by Jupiter, Saturn, and Uranus to reach Neptune in 1989."
「旅行者2号」速度较低,飞越木星、土星、天王星,1989年与海王星相遇。
Jupiter, Saturn, Uranus, and Neptune are primarily hydrogen and helium.
木星，土星，天王星以及海王星的大气主要是氢和氦。
Uranus is only a tiny spot in the sky.
天王星只是天空中的一个极微小的点。
Pluto was discovered when astronomers were trying to find the cause of Uranus' strange orbit.
冥王星是在天文学家探索天王星奇怪轨道奥秘之际发现的。
Correlations of satellite positions and ring features occur in the Jovian, Uranian and Neptunian systems as well.
在木星、天王星、海王星的系统中，卫星的位置也和行星环的特性密切相关。
The rest had no major aspect between Mars and Uranus.
剩余的人没有火星和天王星之间的主要相位。
The conjunction of Jupiter with Uranus produces a good deal of restlessness in your nature.
木星与天王星的合相产生出你高度的活跃本质。
There is an opposition formed between Venus and Uranus in your chart.
在你的命盘中，金星跟天王星之间形成对分相。
Uranus is unusual because it is tilted.
天王星)非常特殊，因为它是倾斜的。