Hey I'm Mercury. Welcome to our Solar System.
Right at the centre of our Solar System, is...
Me, The Sun!
The Sun is a star and it's pretty old. It's about...um... hey Sun!
I'm about 4.6 billion years old.
Thanks. Wow, that is old.
Is The Sun a star?
Well, there are lots of stars and our Sun is the closest one to us, which is why it appears big in our sky.
Don't just take my word for it though.
Although I'm about 93 million miles away from The Sun...
...it keeps me and my living things warm. It provides energy and also gives us light so we can see.
Even though The Earth is 93 million miles away from me. Wow that is far!
The sunlight travels so fast, that it only takes about eight minutes to reach The Earth.
So my sunlight does travel fast.
Without The Sun, nothing would exist on me.
Hey Saturn, I've got a joke for you.
Yes Sun?
Which day is the best day to go to the beach?
I don't know.
On a SUN-day. Ha ha! Sunday.
How do you affect the planets?
Did you know all planets orbit around me.
However long it takes a planet to move around me is how long it's year is.
My gravity keeps all our Solar System planets together in one space.
If it weren't for me, Earth would fly off loose into the universe.
Woah!
Alone and cold.
Okay, okay. So we've all seen the first bit. What have we learned about The Sun then?
Neptune?
Um....well I...uh...I learned...
Yes?
...um that The Sun is...um...hot.
Brilliant!
Anything else? Mars?
Um...it's hot.
No! We've had that!
I know, it's old.
Were any of you watching this? Jupiter?
Um...it's big?
Right.... Venus, give us something good.
Um...it's hot?
Right...back to the video.
Hey Sun are you a ball of fire?
Not really, no.
I am a hot ball of gases and I give off huge amounts of energy.
I'm mostly made up of hydrogen and helium.
Gravity pushes these gases together so tightly, that it causes nuclear fusion.
**Snores
Wake up! It's not that boring!
What's your temperature?
Well my surface temperature is about 5500 degrees Celsius...
...and the centre of me is about 15 million degrees Celsius.
The Sun gives us our seasons, like winter and summer.
And also controls how and when we sleep.
If Earth was slightly closer to The Sun, it would probably be as hot and choking as Venus.
Further away, it would be as cold and empty as Mars.
Hey! Sorry, but it's true.
How big are you?
I have a diameter of around 1.39 million kilometers, or 864,000 miles.
You could fit around 1.3 million of Planet Earth inside me.
I am a Yellow Dwarf Star.
But compared to other Suns in the universe, I am small or average in size.
Other stars can be more than a hundred times bigger than me.
But in our Solar System, I am 99.8 percent of the total mass.
That was great!
Yes, well done; great video.
Uranus!
Yes?
Did the planets learn loads from the video?
Ummm.
Yes, that you're very hot.
Well what about the cool things, like nuclear fusion?
Yeah, you're very hot...
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