天王星卫星

天王星卫星CCD观测的初步分析

A preliminary analysis on CCD astrometry of Uranian satellites

天王星卫星CCD（SRT）位置测量的数字图象处理

Digital image processing of the CCD ( srt ) positional observations of two satellites ( ariel and titania ) of Uranus

结果表明，相对于天王星卫星确实可以精确测定同一CCD视场中暗恒星的位置，位置测量的精度和国外最好的天王星卫星位置测量的精度相当或更高。

The results show that the positional precision for each star is comparable to or better than the best observations of Uranian satellites that is used to improve their ephemeris .

现代天王星卫星运动定量理论的研究和发展

Study and Development of Contemporary ( Quantitative ) Theories on the Motion of the Uranian Major Satellites

针对天王星卫星位置观测图像中存在的一些问题，提出了一种新的图像处理方法，即二维墨西哥帽小波变换方法。

A new method of CCD image processing , two dimensions Mexican Hat wavelet transform , is put forward for the purpose of improving the quality of the CCD images of uranian satellites .

这意味着它在六个小时之内飞过了天王星及其卫星。

This meant that the spacecraft passed Uranus and its moons in just six hours .

木星、土星、天王星及其规则卫星的形成

Formation of Jupiter , saturn , uranus and their regular satellites

1995年8月在上海天文台利用安装在1.56米望远镜上的CCD探测器对天王星五颗主要卫星进行了定位试观测。

The major satellites of Uranus were observed with the CCD detector equipped on the 1.56m telescope at the Shanghai Astronomical Observation during the 1995 opposition .

为了满足大行星卫星的高精度CCD位置观测与运动理论研究工作的需要，采用天王星5颗主要卫星摄动理论模型（Gust86）作为核心，设计了一个天王星视位置可视化软件。

In order to meet the need of getting high precision of the CCD observations for the positions of the planets'satellites and studying their motion , a software which visualizes the positions of the Uranus ' five major satellites has been designed .

只有天王星没有大的卫星。

Uranus is the only one without a large moon .

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 data of the satellites acquired by spacecraft-centered radio and optical observations during the Voyager 2 encountering Uranus provide the first reliable estimation of the masses of all five major satellites . Contemporary quantitative theories on the motion of the Uranian satellites have been promoted .

天卫一距离天王星第十四远的天王星卫星三天以前，大前天。

The satellite of Uranus that is second in distance from the planet . Three days ago .