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• It’s almost impossible to imagine the vast distances at play when picturing the size of our solar system,

• and especially the distances to the neighbouring stars.

• Our brains are quite good at dealing with medium-sized

• objects and distances like buildings, city blocks and

• even entire cities, but when someone says that Pluto

• is 7.3 BILLION kilometers away, what does that really look like?

• In order to get a sense of the immense scale of our

• solar system and the distances between the planets,

• let’s build a scale model in a city so we have some

• common reference points for judging the relative distances.

• Well start in an American football field with the sun

• placed at the 50 yard line and scaled to the size of a 44cm beach ball.

• At this scale, Earth and Venus are the size of a small

• stud earring, only 4mm in diameter. Jupiter is about

• the size of a golf ball, Uranus and Neptune are the

• size of a small marble, and our moon and Pluto are

• closer to the size of a round candy sprinkle,

• only 1mm in diameter.

• Now let’s put them in their proper locations based on

• their aphelions, or their farthest distances from the sun.

• Well find Mercury near the 26 yard line or 22 meters

• from the sun. That’s equal to about 70 million kilometers at actual scale.

• Venus will be near the 12 yard line,

• 34 meters from the sun.

• Earth can be found inside the end zone at 48 meters

• from our beach ball sun.

• And our little candy sprinkle-sized Moon is about 13cm

• from the earring-sized Earth.

• To find Mars, well have to get up to the middle of

• the lower seating section, about 80m from the sun.

• At this scale, Mars is about 2mm in diameter, as you

• can see compared to this bottle cap.

• After Mars, the distances start to increase rapidly.

• To get to Jupiter, well have to head out 260m or 850ft,

• which is halfway into the parking lot.

• Saturn will take us all the way through the parking

• lot and to the edge of the first block of the city,

• or 480m from the sun.

• Uranus is over 5 city blocks past the parking lot.

• That’s 950 meters from the centre of the stadium.

• Our small marble-sized Neptune takes us right to the

• edge of our model city, almost 10 blocks from the

• parking lot and 1.43km, or 0.89 miles from the sun.

• Now well make our way to little dwarf planet Pluto,

• nearly 10 football fields past Neptune.

• Fun fact: In this part of the animation, were

• currently travelling at a scale speed of nearly 600 times the speed of light!

• Pluto, here less than 1mm in diameter, is well beyond

• the city and across the bridge at over 2.3 km, or 1.4 miles from the centre of the stadium.

• That’s what 7.3 billion km looks like when our entire planet is scaled down to a mere 4mm.

• Now how far away do you think the nearest STAR would

• be at this scale?

• If our beach ball sun was in Yankee Stadium in New

• York City, our entire solar system would be contained

• within a 2 to 3 km radius between Harlem and the Bronx.

• At this scale, here is where Proxima Centauri, the

• nearest star to our sun, would be found.

• Not yet

• Even farther!

• The nearest star would be past Mumbai India at about

• 12,690 km away!

• If we ever want to explore the neighbouring star

• systems, I think were going to need some faster ships!

• Now that youve got a sense for the scale of our solar

• system, why not check out our video about the Hubble Deep

• Field Images and the size of the Universe by clicking

• here or in the description below.

• If this is your first time on our channel, I hope

• you'll subscribe to catch more of our upcoming science

• videos and if you have young children, you can also

• check out our educational videos for preschool kids.

• Thanks so much for watching. See you next time!

It’s almost impossible to imagine the vast distances at play when picturing the size of our solar system,

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# Our Solar System: Scale Model in a City | Brain Candy TV

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Yassion Liu posted on 2016/07/22
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