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

其实地球在自的同时绕太阳公。

They take about two Earth years to complete their circuits.

这些卫绕木公圈需要大约2个地球年的时间。

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

尽管木自速度很快，但它绕太阳公大约需要12年。

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

地球围绕太阳公需要年。

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

还有些球被称为“孤儿球”，它们就算想公有恒。

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

火的公轨道离太阳平均距离略高于2亿公里。

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

它几乎面对着我，以个完美的圆形轨道公。

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

太阳系中的行并不是沿着完美的圆形轨道公。

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

地球绕太阳公的时间是365又四分之天。

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

它只需 7 小时 39 分钟就完成了次公。

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

这个地方每年和我们起绕太阳公，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，它的轨道距离其恒比木距离太阳近170倍，每两天完成次轨道运行。木绕太阳公则大约需要12年。

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，地球围绕太阳公，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.

月球绕地球需要27个地球日，并以同样的速度或同样的时间自或公。

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，只反射太阳的光，我们可以在它每月公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.

就是说，颗行绕太阳公所需的时间，就是它的期，与它到太阳的平均距离有关。

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.

冥王的公时间相当于248 个地球年。所以要等到下个机会需要很长时间。

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——如太阳系中大多数卫的自与公——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——太阳系中的第八颗行，绕太阳公需要多少个地球年？