它的质量大约是地球质量的55倍。
它大约是地球质量与大小的5.5倍并被认为是由岩石组成的。
It is about 5.5 times as massive as Earth and thought to be rocky.
在地震中，地球质量移动得离赤道越近，地球转速就越快。
The closer the mass shift during an earthquake is to the equator, the more it will speed up the spinning earth.
地轴是地球质量平衡的轴线，偏离南北轴线约33英尺（10米）。
The figure axis is the axis around which the Earth's mass is balanced and the north-south axis by about 33 feet (10 meters).
它大概是地球质量的8倍而且它所在的轨道恰好有益于在其表面有液态水的存在。
It is about 8 times the mass of Earth, and located in an orbit just right for liquid water to exist on the surface.
一方面，大家都知道的测量效应，探测器接近受地球质量影响的局部时空。
One, known as the geodetic effect, is the amount by which the mass of the Earth will.
但是，近年来天文学家通过径向速度法去发现或证实大量小到只有几倍的地球质量的行星。
But in recent years astronomers have used radial velocity to find or confirm a number of planets down to a few times Earth's mass.
利绍尔假定它的质量上限是地球质量的约17倍，虽然后期的测量会作出修正。
Lissauer posits an upper limit of about 17 times the mass of Earth, though that is subject to revision as more measurements are made.
超级地球是指那些比地球质量大的系外行星，它们的质量一般约为地球的10倍左右。
A super-Earth is a planet with a mass larger than Earth's, roughly up to 10 times greater.
所以神召教授从中看到的只是地球体积的增大，而忽略了地球质量是否也在增大的问题。
So God called professors from the Earth to see only the volume increases, while ignoring the mass of Earth is also growing problems.
这颗编号为HD 85512b的行星是地球质量的3.5倍，离其主恒星距离较近，足以容纳水分。
The planet, referred to as HD85512b, is about 3.5 times the mass of Earth and may be close enough to its primary star to contain water.
因此，地球体积的增大是现象，而地球的质量增长是原因，地球质量的增大是其退行运动原因。
Therefore, the increase of the phenomenon of Earth's volume, while the quality of growth is the cause of the Earth, Earth's mass increases because of its retrograde motion.
如果你算地球绕太阳，因为我们用所有这些，等式，以太阳质量，代替地球质量，然后我们再用行星做。
If you take the Earth itself around the sun because we can use all these equations replace the mass of the Earth by the mass of the sun, and then we can do this for planets.
马西博士怀疑，他的这个拥有地球质量四十五倍的新发现星体有一个岩层核心构成，并被一层很厚实的氢气与氦气层笼罩。
Dr Marcy suspects that his new discovery, which has about 45 times the mass of the Earth, is composed of a rocky core surrounded by a thick envelope of hydrogen and helium gas.
地球质心(简称地心)是指包括海洋大气等的整个地球的质量中心，地心运动是地球质量中心相对于地球参考框架原点的位移。
Geocenter motion is the relative displacement from the center of mass of Earth to the origin of the Terrestrial Reference Frame.
虽然火星的表面积相当于地球的陆地面积，但是它的直径只有地球的一半，密度也小于地球，只有地球体积的15%，地球质量的11%。
Even though Mars has almost the same land surface area as Earth, it has only half the diameter and less density than Earth - possessing roughly 15% of Earth's volume and 11% of its mass.
法国Cassiopee实验室的天文学家亚历山大莫尔比代利(Alessandro Morbidelli)称，有关气体阻碍的理论表明在三倍地球质量和木星质量之间的行星应该相当稀少。
Theories of gas drag also say that planets between three times Earth's mass and Jupiter's mass should be relatively rare.
经过长达六年的观测，发现有五颗行星的质量是地球的13-25倍。
Six years of observations revealed the presence of five planets between 13 and 25 times the mass of Earth.
这个系外行星的质量是地球的几倍，但是它足够小，能够由岩石构成，而不是像木星是一团巨大的气体。
The exoplanet is a few times the mass of Earth, but it should still be small enough to be rocky rather than a gas giant like Jupiter.
第一个是一对质量与木星差不多的行星，这对行星步调一致地围绕距离地球15光年的母恒星旋转。
The first is a pair of planets, each about the mass of Jupiter, that whirl around their home star 15 light years from Earth in perfect lockstep.
最大的类地行星地球的直径仅仅是最小的类木行星海王星的四分之一，而且地球的质量仅仅是其质量的十七分之一。
The largest terrestrial planet, Earth has a diameter only one quarter as great as the diameter of the smallest Jovian planet, Neptune, and its mass is only one seventeenth as great.
一次地震可以使地球旋转得更快，通过将地球的质量向它的轴线轻推，正如滑冰的人可以通过缩回他们的手臂来使旋转加速。
An earthquake can make earth rotate faster by nudging some of its mass closer to the planet's axis, just as ice skaters can speed up their spins by pulling in their arms.
天文学家们相信，未来几年，能发现大小和质量同地球相同的行星。
Astronomers believe that a planet of similar size and mass to Earth could be discovered within a few years.
这种理论的支持者相信每时每刻都有大量弱作用大质量粒子通过地球。
Supporters of the idea believe a large number of WIMPS pass through the Earth every second.
由于质量朝地球旋转轴靠拢，这就导致地球旋转速度加快- - -就像一个速度滑冰选手，当她把胳膊向身体收拢时就会旋转得更快。
Since that pulls mass closer to the planet's spin axis, it causes the planet to rotate faster - just as an ice skater spins faster when she pulls her arms towards her body.
因为质量比地球小的行星迁移速度缓慢，所以他们更易于在气盘中存活。
Planets smaller than Earth can easily survive in the disk because they migrate slowly.
这张是褐矮星相对地球、木星、低质量恒星和太阳的对比图。
This diagram shows a brown dwarf in relation to Earth, Jupiter, a low-mass star and the sun.
他们之所以认定它是一颗岩状行星，是因为它的质量仅为地球的五倍——与气态行星相比实在相去甚远。
The team think it is rocky because it weighs only five times asmuch as Earth—too little for a gas giant.
他们之所以认定它是一颗岩状行星，是因为它的质量仅为地球的五倍——与气态行星相比实在相去甚远。
The team think it is rocky because it weighs only five times asmuch as Earth—too little for a gas giant.
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