星系

UGC 9618, also known as VV 340 or Arp 302 consists of a pair of very gas-rich spiral galaxies in their early stages of interaction: VV 340A is seen edge-on to the left, and VV 340B face-on to the right.

UGC 9618也叫VV 340或Arp 302，由两个含有大量气体，处于相互作用早期状态的两个漩涡星系组成：VV 340A是左边侧向的，VV 340B 是右边正向的星系。

Not only are Lintott and his colleagues finalising Galaxy Zoo 2, which will examine galaxies in much more detail, they are also building a platform that will allow any scientist to upload data and tap into the vast potential of the internet.

Lintott和他的同事不仅将推出星系动物园第二版，令观察星系更加简单，他们还会提供一个新的平台，一个可以让任何科学家上传数据，利用互联网的无尽潜力的平台。

As a result, galaxies in clusters become starved of gas over time, and black hole activity and star formation in these galaxies slows.

结果，随着时间的推移，星系团内的星系就会缺乏气体，因此这些星系中黑洞的活跃性减弱，新星的形成速度放慢。

The current picture is that all galaxies may have a supermassive black hole in their center, and that this black hole swallows gas and dust in the middle of the galaxies generating huge amounts of radiation - until all the nearby mass has been swallowed a

现在的照片是所有的星系在它们中心可能存在超大质量的黑洞，而且这个黑洞在星系中心吞咽气体与尘埃产生极大量辐射-直到所有附近质量被吞咽，而且过程停止下来。

Comparing to other galaxies,these host galaxies of H2O masers may have some special properties not yet to be noticed.

同其它没有检测到水脉泽的星系相比，水脉泽星系可能隐含着某种或某些特殊性质。

IC 2545 is a beautiful, but deceptive object that appears to be a single S-shaped galaxy, but is actually a pair of merging galaxies.

IC 2545是个漂亮的但有着欺骗性S状外观的星系，它实际上是一对合并中的星系。

Arp 220 appears to be a single, odd-looking galaxy, but is in fact a nearby example of the aftermath of a collision between two spiral galaxies.

Arp 220看上去像一个单个星系，但实际上是两个漩涡星系碰撞后的产物，离得也比较近。

Using the K20 eyepiece included as standard equipment, about 45x magnification, it's easy to see the Andromeda Galaxy and its smaller satellite galaxy M32. When compared to 60mm refractors, the Powerseeker 114 brings out much more detail in the Orion Nebula, reveals many more stars in Perseus' Double Cluster and even brings out a few individual stars in globular clusters like M13. Saturn looks quite small at 45x with the K20 eyepiece, but using my own 7.5mm eyepiece (120x) I can easily detect the shadow cast by the planet on the rings, and even glimpse the ring's Cassini Division. When the mirrors are properly lined up or "collimated," the images are reasonably sharp up to magnifications of 225x.

使用标准配件中的K20 目镜，可以得到45倍放大率，这时候很容易看到仙女座星系，还有较小的星系M32；和60毫米口径的折射望远镜相比，114 EQ可以看清更多猎户座星云的细节；瞄准英仙座双星团，看到的星体数量更多，显得更加壮丽；对于球状星团，比如M13，甚至可以显出其中少数独立的恒星；在K20 目镜下（放大45倍）的土星显得相当小，但换成我自己的7.5毫米焦距的目镜(得到120倍)，可以轻松的看到光环在土星上的投影，甚至可以瞥见土星光环内的卡西尼缝隙。

If astronomers look at a galaxy and see one line at a longer wavelength than it would be on Earth, they would know that the galaxy was redshifted and moving away from us.

如果天文学家观察一个星系并看到一条线比地球上的波长要长，那么他们就知道星系是红移并远离我们而去。

The discovery suggests that quasars created at least some galaxies, and perhaps not the other way around.

该发现表明，类星体至少创造了某些星系，或许并不是星系创造了类星体。

According to the clear water experiment, aeration performance of the new equipment is good with high total oxygen transfer coefficient and oxygen utilization ratio.

曝气设备的动力效率在叶轮转速为120rpm～150rpm时取得最大值，此时氧利用率和充氧能力也具有较高值。

The environmental stability of that world - including its crushing pressures and icy darkness - means that some of its most famous inhabitants have survived for eons as evolutionary throwbacks, their bodies undergoing little change.

稳定的海底环境─包括能把人压扁的压力和冰冷的黑暗─意谓海底某些最知名的栖居生物已以演化返祖的样态活了万世，形体几无变化。