恒星

Theycan travel at tens or possibly even hundreds of kilometers per second,and in the case of young stars extend over a parsec in length.

它们的速度可从10km/s直到数百km/s，而来自年轻恒星的偶极外向流能延伸到1秒差距外。

One parsec is defined as the distance at which a star would show a parallax displacement of 1 second of arc, a distance which proves to be approximately 3.258 light years.

一秒差距被定义为一颗恒星位移一度的距离，此距离经证实大约为3.258光年。

We have a payload to deliver to the heart of our nearest star.

我们要送弹头到最近的恒星

This planet is orbiting a star in the Pegasus constellation some 50 light years away.

这颗行星绕飞马座中的一颗恒星做轨道运动，距离约为50光年。

According to introduction, they make use of Europe south the astronomical observatory establish in 3.6 meters caliber astronomical telescope of the Chile a set of the mountain lodge of 2400 meters saddle type of an elevation, confirm Be located on south the fixed star"Gliese 581" inside the along while ball scales horoscope see toward the speed because it surroundings can't see fixed star of gravitation function but"perturbation" for appear, subsequently reckon this a red and short star neighborhood of"new the Earth" round a mother fixed star of revolution around sun period and quality.

根据行星的介绍，他们利用欧洲南方使用建立天文台3.6米口径的智利一集的山2400米的海拔马鞍型，提出确认将于南部的恒星"格里斯581"所在的内沿，同时对球尺度占星速度见的天文望远镜因为它周围看不到固定的引力作用，但"摄动出现，随后估计这是一个红色的和短期的"新地球"轮明星邻居母亲围绕太阳固定期限和质量革命之星"的明星。

"Just after it was born, this neutron star got a one-way ticket out of the Galaxy," said co-author Robert Petre of NASA's Goddard Space Flight Center in Greenbelt, Md."Astronomers have seen other stars being flung out of the Milky Way, but few as fast as this."

"就在刚出生后不久，这个中子星就得到了一张离开银河系的路票"来自NASA的Goddard宇宙发射中心的共著者 Robert Petre 说到"天文学家已经观测到其他恒星冲出银河系，但很少有他这么快的"

The β decay phase space integral in stellar environment is discussed.

对恒星环境下β衰变的相空间积分进行了讨论。

In photographic photometry we use photographic plates of a certain region of the sky to determine the coordinates of the stars.

在照相测光中，我们利用所拍摄的天空某一区域的照相底片来测定恒星的坐标。

The data are taken at 5 Hz, and aperture photometry was completed for stars down to ~13.7 mag.

资料取样频率为5 Hz，孔径测光可至星等约为13.7等的背景恒星。

Calibration-technology of the star makes use of true pointing of star to calibrate pointing accuracy of electro-optic phototheodolite.

星体标校技术是利用恒星在天球上的准确视位置标定光电经纬仪的指向精度。

The split between the two groups can hardly be papered over.

这两个团体间的分歧难以掩饰。

This approach not only encourages a greater number of responses, but minimizes the likelihood of stale groupthink.

这种做法不仅鼓励了更多的反应，而且减少跟风的可能性。