星团

If it were worth the while to settle in those parts near to the Pleiades or the Hyades, to Aldebaran or Altair,(7) then I was really there, or at an equal remoteness from the life which I had left behind, dwindled and twinkling with as fine a ray to my nearest neighbor, and to be seen only in moonless nights by him.

如果说，居住在这些部分，更靠近昴星团或毕星团，牵牛星座或天鹰星座更加值得的话，那末，我真正是住在那些地方的，至少是，就跟那些星座一样远离我抛在后面的人世，那些闪闪的小光，那些柔美的光线，传给我最近的邻居，只有在没有月亮的夜间才能够看得到。

Omega Centauri is also the brightest globular cluster, at apparent visual magnitude 3.9 it is visible to southern observers with the unaided eye.

半人马座欧米伽星团也是最明亮的球状星团，其亮度大小显示为3.9星等，在南半球的观察者用肉眼就可以欣赏它了。

Caption:: A sixth magnitude globular cluster in the constellation Canes Venatici, this ball of 500,000 stars is approximately 160 light years across and 100,000 light years from Earth.

这个星团叫 M3，是梅西尔星表的第3个成员，它位於猎犬座，是一个球状星团。

The Pleiades are approximately 440 light-years away and the Hyades are about one-third that distance: 150 light-years.

昴星团大约有440光年远，而毕星团则大约是此距离的三分之一：150光年。

Caption:: Located in the constellation Herculues, M13 is the largest and brightest globular cluster in the northern sky, third in the whole sky, after the Omega Centaurus and 47 Tucanae.

位於武仙座的球状星团M13，是北天球最大最亮的球状星团，在全天排行第三，仅次於南天球的半人马座奥米加星团，杜鹃座47。

This spectacular nebula is energised by an exceptionally high concentration of massive stars, often referred to as super star clusters.

这个壮观的星云由内部一群高度密集的大质量恒星照亮，这些恒星群一般归类于超级星团（话说我只知道球状星团和疏散星团，这个算什么星团？

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。

First,current research of kinematic properties of the Galaxy as well as their latest results are reviewed.Second,an updated,most complete catalogue of 209 open clusters with galactic longitude,galactic latitude,heliocentric distance,age,absolute proper motion and radial velocity data as well as 41 open cluster only with radial velociyty data is compiled.Also,the spatial distribution of the open cluster system is studied.

首先，本文综述了银河系运动学性质的研究现状，总结了历年来银河系运动学参数的研究结果；其次，本文在对最新疏散星团观测资料和文献进行调研和整理的基础上，编纂了迄今最完整的同时具备银经、银纬、日心距、年龄、绝对自行与视向速度的209个疏散星团样本以及只有视向速度资料的41个疏散星团样本。

The 29 F globular clusters in the galaxy are selected as samples in my paper (The space distribution and motional orbits of the samples have not been researched in detail before.).According to the basic parameters: azimuth coordinates, distances from the sun, radial velocities and proper motions of sample clusters, the initial positions and velocities of the samples are reduced using the galactic coordinates, and their orbits are integrated by numerical method for three different galactic gravitational potential models.

本文选用银河系中29个累积光谱型为F型的球状星团作为样本(这些样本星团的空间分布和运动特征都没有被详细地讨论过)，根据它们的基本资料：方位坐标、日心距、视向速度，绝对自行等参数，归算处理得出了各样本星团的空间分布和运动速度。

Plates of globular cluster M3, taken with the 40cm refractor at Sheshan station of Shanghai Astronomical Observatory, are used by this work. The difference of epoch of these plates is up to 81years. The positions and absolute proper motions of 24 stars in ACT catalogue, which links with the Hipparcos Catalogue based on the International Celestial Reference System, are used as the reference frame. Using the central overlapping principle, the absolute proper motions of 534 stars in the region of about 100'×100' around the cluster are determined. After the membership determination of the stars which based on the data of proper motions, average absolute proper motion components for the cluster of -0.3±0.3 mas/yr in R.A.

本文使用上海天文台佘山40厘米折射望远镜拍摄的14张最长时间跨度为81年的球状星团M3底片的PDS扫描结果，使用与 Hipparcos星表相联系的基于国际大球惯性参考系的ACT星表中的 24颗恒星的位置和绝对自行为参考架，用中心重叠法进行天体测量归算，得到了这个星团中心附近100'×100'天区内534颗恒星的位置和绝对自行，并利用这些自行对成员概率进行了估算，得到这个星团的赤经方向绝对自行为- 0.3±0.3mas/yr，赤纬方向绝对自行为-3.1±0.3mas／yr。

They weren't aggressive, but I yelled and threw a rock in their direction to get them off the trail and away from me, just in case.

他们没有侵略性，但我大喊，并在他们的方向扔石头让他们过的线索，远离我，以防万一。

In slot 2 in your bag put wrapping paper, quantity does not matter in this case.

在你的书包里槽2把包装纸、数量无关紧要。