Sizes & Distances in the Sun-Earth-Moon System

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A very famous distance is the distance between the Earth and the Sun. Find out about the sizes and distances in the sun-Earth-moon system with help from an experienced education professional in this free video clip.

Part of the Video Series: About Astrophysics & Outer Space
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Video Transcript

Hi, my name is Eylene Pirez, and I'm an astrophysicist. And this is sizes and distances of the Sun, Earth and Moon system. So, first let's talk about the distances, a very famous distance is the distance between the Earth and the Sun. And this is called one astronomical unit and is 14 million kilometers. Now the other distance that we want to know is the distance from the Earth to the Moon. And this distance is 384,000 kilometers. And then, the last distance that we need to know is the distance of the Moon to the sun. But because the Moon is also orbiting us, it fluctuates. So, when it's at this point of the orbit, it's a little further away. So the closest point and the furthest point. So from here to here is a 147 million kilometers. And this whole distance is a 152 million kilometers. So, these are the distances in the Earth, Moon and Sun system. Now, for the masses, we have the mass of the Earth, which is six times 10 to the 24 kilograms. And the for the moon we have seven times 10 to the 22nd kilograms. And then, Sun is two times 10 to the 30th kilograms. And these are the sizes and the distances in the Earth, Moon and Sun system. My name is Eylene Pirez and I'm an astrophysicist.

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