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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.

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  • 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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私たちの太陽系。都市の模型|脳内キャンディTV (Our Solar System: Scale Model in a City | Brain Candy TV)

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    Yassion Liu に公開 2021 年 01 月 14 日