Classification of stars/galaxies based on AutoClass
基于自动聚类算法(AutoClass)的恒星/星系分类
A new algorithm of calculating the apparent place of fixed star;
一种求恒星视位置的新算法
Contrast of star to sky background is an important parameter of star sensor.
恒星-背景对比度是星敏感器白天探测恒星的一个重要参数,它决定了星敏感器可探测星等的极限值。
A model of radiation sky background is established based on IRAS and MSX Star Catalog.
在确定地基光学系统参数后,经过对星表数据进行坐标转换和天文修正,得到观测天区的恒星分布和红外辐射特性数据,并利用计算机绘制深空点源图像。
Calibrating the pointing precision of satellite laser ranging theodolite by observing stars;
利用恒星标校卫星激光测距经纬仪指向精度
The age-metallicity relation(AMR)of the Galactic disk stars is a fundamental issue to study the formation and evolution of the Galaxy.
该文回顾了恒星的AMR(年龄-金属丰度关系)研究的历史,评述了研究的现状;介绍和比较了确定恒星年龄和金属丰度的有关方法;分析和讨论了最近有关AMR研究的4个大样本工作,分别利用每两样本之间的共同样本星,详细比较了它们分别给出的恒星年龄、金属丰度和AMR;结果表明样本的选择效应以及确定恒星年龄和金属丰度的方法或采用参数的不同都会影响AMR。
The successive nuclear reaction within stars causes constant evolution.
恒星内部依次进行着核反应 ,促使恒星不断地演化 ,恒星演化到晚期的归宿将成为白矮星或中子星或黑洞 。
Classification of stars/galaxies based on AutoClass
基于自动聚类算法(AutoClass)的恒星/星系分类
A constellation is a stellar system.
一个星座就是一个恒星星系。
The supernova Ia ratio in milky way galaxy;
银河系Ⅰa型超新星所占星系恒星数目比例
The Milky Way is a galactic system made up of many fixed stars.
银汉是由无数颗恒星组成的星际体系。
It is reasonable to suppose that other stars are also attended by planetary system.
有理由猜测别的恒星也伴有行星系统。
The Age-metallicity Relation of Stars in Different Stellar Populations;
不同星族恒星的年龄—金属丰度关系
Shara's research interests include stellar collisions, novae and supernovae, and the populations of stars that inhabit star clusters and galaxies.
夏拉的研究兴趣包括恒星碰撞、星与超新星，以及星团和星系内恒星的数目分布。
We know that the universe is filled with stars and suns and planets and systems.
我们知道宇宙充满了各种恒星、行星、各种星座、星系。
These stars are sometimes called poulation II stars.
这些恒星有时称为星族Ⅱ恒星。
Spiral galaxies are considered to be gravitationally bound configurations of stars.
旋涡星系被认为是由恒星组成的引力束缚系统。
The sun is one of the stars in the galaxy, in which there are about 100,000 million stars.
太阳是银河系中的一颗恒星，银河系大约有一千亿颗恒星。
The starts were formed from gases that originally permeated the whole galaxy.
恒星是由原来遍及于整个星系内的气体所形成。
An average of one new star is born in our galaxy each year.
平均每年在我们的星系中诞生一颗新的恒星。
The stars of the galaxy must revolve about its center if the galaxy is not to gradually collapse.
如果星系不致于逐渐坍陷的话，星系中的恒星必须绕其中心旋转。
The largest stars are called giant stars.
最大的恒星叫做巨星。
worship of planets or stars.
对行星和恒星的崇拜。
An evil influence of a star or planet.
恒星或行星邪恶的影响
dispersion ring
弥散环 -恒星运动