柯伊伯带

2005年1月，他发现了一颗大小相当于冥王星的天体，位于海王星以外的充满冰结碎块的柯伊伯带（KuiperBelt）。它如今命名为阋神星（Eris）。

In January 2005 , he discovered a Pluto-size object , now known as Eris , in the Kuiper belt , the ring of icy debris beyond Neptune .

四个类木行星和柯伊伯带（包括冥王星）

Four Jovian planets and the Kuiper belt ( including Pluto ) .

天文学家把超出冥王星的区域称为“柯伊伯带”。

Astronomers call the area beyond Pluto the Kuiper Belt ( 3 ) .

他们使用赫歇尔太空镜来观测哈特利2号，这颗来自柯伊伯带的彗星。

They used the Herschel space telescope to examine Comet Hartley 2 , which

将来它可能会被叫做柯伊伯带天体，而不是行星。

Instead of a planet , it may be called a Kuiper Belt object in the future .

大部分天文学家相信，在遥远的柯伊伯带，有更多天体会被发现。

Most astronomers believe there are many more objects to be discovered in the distant Kuiper Belt .

美国宇航局的新视野号宇宙飞船计划在2015年与冥王星亲密接触后造访柯伊伯带中的一到二颗小行星。

NASAs New Horizons spacecraft intends to visit one or two of them after it flies past Pluto in 2015 .

计算机模拟显示，该行星将柯伊伯带的天体全部重新洗牌，只是暂时被安置在椭圆形轨道中。

The computer simulations showed that the planet swept up the Kuiper belt objects and placed them only temporarily in the elliptical orbits .

模拟中另一奇怪的结果是：小部分柯伊伯带天体被撞向了与其他行星相垂直的轨道。

Another strange result in the simulations : A few Kuiper belt objects were knocked into orbits perpendicular to those of the planets .

布朗多年来在柯伊伯带发现了类似的星体&巨大的柯伊伯带充满了似彗星并绕太阳系运行的天体。

Brown had been finding similar objects in the Kuiper Belt the massive band of comet-like bodies that circles the solar system for years .

作为理论天文学家，巴蒂金试图将一颗行星安放其中。这打散了柯伊伯带中的不少天体，但形成的椭圆轨道的离心率依然不够大。

Dr. Batygin , a theorist , tried placing a planet among them , which scattered some Kuiper belt objects , but the orbits were not sufficiently eccentric .

特鲁希略和谢泼德注意到，柯伊伯带的几个天体有类似的轨道特征。他们提出了一种假设：有可能存在一颗行星，正是它影响了这些天体的轨道。

Dr. Trujillo and Dr. Sheppard noted that several Kuiper belt objects had similar orbital characteristics , and they laid out the possibility of a planet disturbing the orbits of these objects .

柯伊伯带从海王星的轨道向外延伸，一直到接近海王星轨道两倍的地方，也就是分布在距离太阳约28亿英里到50亿英里处。

The Kuiper belt extends outward from Neptune 's orbit , about 2.8 billion miles from the sun , to a bit less than twice Neptune 's orbit , about five billion miles .

巴蒂金表示，五亿年后赛德娜会回到柯伊伯带，而其他天体也会被推入椭圆形轨道中。

Come back in half a billion years , Dr. Brown said , and Sedna will be back in the Kuiper belt , while other Kuiper belt objects will have been pushed into elliptical orbits .

但天文学家们不必等那久来证实他们对太阳系外层的理解。斯卡德和他的团队已经掌握了其它柯伊伯带星体的掩星。

Astronomers won 't have to wait that long to firm up their understanding of the outer solar system , though : Sicardy and his team already have occultations in hand from other Kuiper Belt objects .

所以，当布朗和他的两名同事在80亿英里远的地方发现了一片直径600英里的冰雪世界时，科学家们颇为意外。就连该天体运行轨道的近日点也在柯伊伯带以外。

Thus they were surprised when Dr. Brown and two colleagues spotted a 600-mile-wide icy world at a distance of eight billion miles that remained well outside the Kuiper belt even at the closest point in its orbit .

环绕着的是内外环行星、柯伊伯带、奥尔特云、半人马座阿尔法星系、英仙座星系、银河系，其它附近星系包括有仙女座星系，还有宇宙网、宇宙微波辐射，以及最边缘大爆炸产生的夸克胶子等离子体。

the Kuiper belt ; Oort cloud ; Alpha Centauri star ; Perseus Arm ; Milky Way galaxy ; other nearby galaxies including theAndromeda galaxy ; the cosmic web ; cosmic microwave radiation ; and , at the very edges of the image , quark-gluon plasma produced by the Big Bang .