light-year的例句大全

A light-year is the distance light travels in one year at a speed of 299,792 kilometers per second.

一光年是光以每秒299792公里的速度在一年中所走过的距离。

After completing its first year of observations in the southern sky, NASA's Transiting Exoplanet Survey Satellite has spotted some intriguing new exoplanets only 31 light-years away from Earth.

美国宇航局的过境系外行星测量卫星（TESS）在完成对南半球天空的第一年观测后，发现了几颗距离地球仅31光年的有趣的新系外行星。

While optical telescopes extend our view deep into space, to distances billions of light-years away from the eye's everyday demesne, optical microscopes turn our vision inward, taking it to deep inner space.

光学望远镜把我们的目光带向宇宙深处，比日常所见的领域还要远数十亿光年的地方。

The Sombrero galaxy is located some 28 million light-years away.

草帽星系位于2800万光年以外。

But without gravitational interactions with stars or interstellar gas, supermassive black holes can't get close enough to each other to go into a rapid death spiral, a situation known as the "final parsec" problem. ( A parsec is the astronomical standard of distance, 3.26 light-years.)

不过，如果没有与星体或星际气体之间的相互牵引，超大质量黑洞不能靠近到能迅速走向碰撞的地步，而这种现象被称为“最后的秒差距”问题（秒差距是天文学距离单位，1秒差距等于3.26光年）。

Fighting gravitational clumping would take a wavelength of a few dozen light-years.

为了对抗重力造成的聚集，这些粒子的波长可能会长达好几十光年的距离

The star with a clutch of super-Earths, 42 light-years away, was spotted by using a new instrument.

瑞士天文学家表示，这是首次在单个恒星附近发现与地球大小相近的星球。

A spectroscopic binary star, 245 light-years from Earth, one of the brightest stars in the sky and the brightest star in the constellation Virgo.

一种用分光镜观察的距地球245光年双星，是天空中最亮的恒星之一，也是处女座中最亮的星星。

The biggest planet of the new batch is HD 85512 b, which is 3.6 times the mass of Earth and can be found 36 light-years away in the Vela constellation.

在这一批最新发现的行星中，最大的是HD85512b。其质量是地球的3.6倍，离船帆座36光年远。

When Einstein announced his general theory of relativity in 1916, astronomers had little conception of distances beyond a few thousand light-years.

当爱因斯坦在1916年发表广义相对论时，天文学家们对于大于几千光年的距离还没有什么概念。

Kepler-186f is an exoplanet orbiting the star Kepler-186 about 500 light-years from Earth. Discovered in 2014, it is the first Earth-size exoplanet found to be orbiting in its star's habitable zone.

开普勒-186f距离地球约500光年，是一颗围绕开普勒-186运行的太阳系外行星。开普勒-186f于2014年被发现，是首颗在恒星的宜居带内被发现的类地系外行星。

People in the Northern Hemisphere can see the Andromeda Galaxy, which is about 2 million light-years away.

北半球的人可以看到仙女座星系，离我们约有200万光年。

Regard Hubble's law as the prerequisite, the observation fact of some astrophysics, in order to accord with, have described the part the past and future of about 20 billion light-years of universe of us, have introduced the universe theory of the large explosion briefly.

以哈勃定律为前提，一些天体物理学的观测事实为依据，描述了我们这部分约200亿光年的宇宙的过去及未来，简要介绍了大爆炸宇宙理论。

The newfound system includes two black holes orbiting each other very closely, about 450 light-years apart, with a third black hole a bit farther out.

这三个黑洞中，有两个相距450光年的黑洞绕着彼此做旋转运动，另外一个则离这两个距离较远。

The star is located 20 light-years from Earth in the constellation Libra. Red dwarf stars are about 50 times dimmer than our sun.

而红矮星Gliese581位于天秤星座，距离地球20光年，大约比太阳昏暗50倍。

in 2005 astronomers reported an extraordinarily fast-moving star some 200, 000 light-years from the galactic center.

2005年，天文学家报告，距银河系中心约二十万光年处，有一颗恒星在以非常快的速度移动。

the black hole, named h1742-322, sits near the galactic center, approximately 28, 000 light-years from earth in the constellation scorpius.

该黑洞名为H1742-322，接近银河系中心，位于天蝎座，离地球有28,000光年之远。

the new planet, called kepler 10-b, orbits a sun-like star 560 light-years away.

这个新的星体被命名为：Kepler10-b，它围绕着一个距离560光年类似太阳的恒星运转。

tenth, we see a fragment of the trifid nebula, a stellar cradle to 9000 light-years.

第十，我们看到一个片段的三裂星云的恒星摇篮到9000光年。

the trifid nebula is about 40 light-years across.

三叶星云的直径大约有40光年。