恒星

Based on the results of the contrast of star to sky background in daytime, the detectable stellar magnitude limits are computed and analyzed as functions of observing heights, solar zeniths angle, wavebands and stellar spectral types for 3°×3° field of view.

根据恒星和白天大气背景辐射的对比度，计算和分析了3°×3°视场下，可探测星等极限值随观测高度、太阳天顶角、波段和恒星光谱类型的变化情况。

Nor is life likely to exist on the newly discovered planet because it is only 5 million miles from Pegasus 51, so close that it whizzes around the star once every four days and must be super hot Nevertheless, the fact that astronomers have found a planet around a sun like star bolsters their belief that others must abound in the universe.

生命也不大可能存在于新近发现的那颗行星上，因为它与飞马星座51的距离只有500万英里，如此之接近使它每4天围绕这颗恒星飞速旋转一次，那必定是超热的。尽管如此，天文学家已发现有一颗围绕类似太阳的恒星运行的行星，这一事实支持他们这样的信念：宇宙中其他的行星必然是很多的。

Scientists speculate it is possible that a cool star lurks right under our noses, closer to us than our nearest known star, Proxima Centauri, which is four light-years away.

科学家们认为有可能在地球和距离我们4光年的最近的恒星&比邻星&之间，潜藏着一颗距离更近的低温恒星。

Progenitor hypotheses include the winds from bright Orion stars and the supernovas of stars long gone .

起源假设包括从明亮猎户座恒星以及很久以前超新星爆炸发出的恒星风有关。

Explanation: M4 is a globular cluster visible in dark skies about one degree west of the bright star Antares in the constellation Scorpius. M4 is perhaps the closest globular cluster at 7000 light years, meaning that we see M4 only as it was 7000 years ago, near the dawn of recorded human history. Although containing hundreds of thousands of stars and spanning over 50 light-years, M4 is one of the smallest and sparsest globular clusters known. A particularly unusual aspect for a globular cluster is M4's central bar of stars.

M4是一个肉眼可见的球状星团，位于天蝎座心宿二的东面约一度位置。M4可能是最靠近我们的球状星团距离约7000光年，这意味着我们看到的是7000年以前的M4，即人类历史有文字记载的开始阶段，它跨越50光年包含有数10万颗恒星。M4是已知在尺度及包含恒星数量上最小的球状星团。M4独特之处是它中心的棒状结构。

While giant stars from the CDM model would be long gone, some of the stellar runts predicted by the warm dark matter model might still be blazing away today and could be detected by future space telescopes.

尽管冷暗物质模拟中呈现出来的大型恒星早已消失，但是温暗物质模拟中预测到的小型恒星可能仍然在照耀着，并且有可能被未来的太空望远镜所发现。

As a result, some theorists propose that massive stars must form from collisions of smaller protostars.

因此有些理论家提出大质量恒星必定起源于较小的原恒星之间的碰撞。

There are two forces that counteract gravity to suppress the fragmentation of the cloud: thermal pressure from the heat of protostars, and turbulence, which may allow massive stars to form directly from accretion.

有两种力可以抵消引力的作用从而抑制星云的破碎：源于原恒星热量的温压，以及湍流--它可能允许大质量恒星通过吸积直接形成。

Simple laws of physics suggest, that gas-dust complexes in the interstellar medium may evolve, first into protostars and subsequently into stars.

简单的物理学定律揭示出，星际介质中的气尘复合体可以进化，先是演化为原恒星，接下去再演化为恒星。

Simple laws of physics suggest, that gas-dust complexes in the interstellar medium may evolve , first into protostars and subsequ tly into stars.

简单的物理学定律揭示出，星际介质中的气尘复合体可以进化，先是演化为原恒星，接下去再演化为恒星。

Neither the killing of Mr Zarqawi nor any breakthrough on the political front will stop the insurgency and the fratricidal murders in their tracks.

在对危险的南部地区访问时，他斥责什叶派民兵领导人对中央集权的挑衅行为。

In fact,I've got him on the satellite mobile right now.

实际上 我们已接通卫星可视电话了