Well the earth is rotating while simultaneously revolving around the sun.

其实地球在自转的同时也绕阳公转。

They take about two Earth years to complete their circuits.

这些卫绕木公转一圈大约2个地球的时间。

Though it spins quickly, Jupiter's orbit around the sun takes about 12 years.

尽管木自转速度很快，但它绕阳公转一周大约12。

It takes a whole year for the Earth to go around the sun one time.

地球围绕阳公转一周一。

In fact, some are called orphan planets and don't even orbit a star at all.

还有一些球被称为“孤儿球”，它们就算想公转也没有恒。

It orbits on average a little over 200 million kilometers from the Sun.

火的公转轨阳平均距略高于2亿公里。

It's nearly face-on in a perfect circle.

它几乎面对着我，以一个完美的圆形轨公转。

The planets in our solar system don't really revolve in perfectly circular orbits.

阳系中的行并不是沿着完美的圆形轨公转。

It goes around the sun once in 365 and almost a quarter day.

地球绕阳公转一周的时间是365又四分之一天。

It completes an orbit in just 7 hours and 39 minutes.

它只 7 小时 39 分钟就完成了一次公转。

This is a place that moves around the Sun with us every year, so the telescope does not get any farther away.

这个地方每和我们一起绕阳公转，这样望远镜就不会飞远。

However, it orbits 170 times closer to its star than Jupiter does to the sun. It completes one orbit every two days. Jupiter takes about 12 years to orbit the sun.

然而，它的轨距其恒比木距阳近170倍，每两天完成一次轨运行。木绕阳公转则大约12。

Scientific discoveries like the Earth is round, that our planet revolves around the sun, or that diseases are spread through germs were all once ideas that were rejected by society.

许多科学发现，像地球是圆的，地球围绕阳公转，疾病通过细菌传播等都曾经是被社会排斥的观点。

The moon makes a complete orbit around Earth in 27 Earth days and rotates or spins at that same rate or in that same amount of time.

月球绕地球一周27个地球日，并以同样的速度或同样的时间自转或公转。

Since the moon doesn't shine on its own but only reflects light from the sun, we see more or less of it during its monthly revolution depending on its position.

由于月球本身并不发光，只反射阳的光，我们可以在它每月公转过程中的不同位置看到它大大小小的样子。

Basically it's saying that how long a planet takes to go around the Sun, its period, is related to the mean of its distance from the Sun.

也就是说，一颗行绕阳公转一周所的时间，也就是它的周期，与它到阳的平均距有关。

One of the new studies details how this collision altered the path of Dimorphos through space — shortening the time it takes to orbit Didymos by 33 minutes.

其中一项新研究详细说明了这次碰撞是如何改变 Dimorphos 在宇宙的路径的——将它绕 Didymos 公转时间缩短了 33 分钟。

Pluto completes a full orbit once every 248 Earth years, so it would be a long wait for the next prime opportunity to visit.

冥王的公转时间相当于248 个地球。所以等到下一个机会很长时间。

But instead, our moon's motions — like the spin and orbit of most other moons in our solar system — are, remarkably, in perfect sync.

然而我们月球的运行——一如阳系中大多数卫的自转与公转——都惊人地完美同步。

How many earth years does it take for Neptune, the eighth planet in our solar system to complete one full orbit around the sun?

海王——阳系中的第八颗行，绕阳公转一周多少个地球？