how far is far?. average of 238,000 miles earth to moon distance
TRANSCRIPT
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How Far is Far?
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Average of 238,000 Miles
Earth to Moon Distance
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93,000,000 Miles1 Astronomical Unit (AU)
Sun to Earth Distance
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Body AU Mercury .39Venus .72Earth 1.0Mars 1.5Jupiter 5.2Saturn 9.5Uranus 19.2Neptune 30.1Pluto 39.5
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Solar System Model
Diameter Orbital Radius Model Diameter Scaled RadiusBody in Miles in Miles in Inches in Feet
Sun 865,000 9
Mercury 3,032
36,000,000 .0314 31
Venus 7,521 67,000,000 .0782
58
Earth 7,926 93,000,000 . 0823
81
Mars 4,228 141,000,000 . 0437
123
Jupiter 88,846 483,000,000 .9021
419
Saturn 74,898 886,000,000 .7528
769
Uranus 31,763 1,782,000,000 .3035
1,546
Neptune 30,775 2,794,000,000 .2937
2,425
Pluto 1,423 3,666,000,000 .0 140
3,186
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Calculating Distance
Viewpoint B
Viewpoint A
Viewpoint A Viewpoint B
Parallax
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Parallax
Viewpoint B
Viewpoint A
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186,000 miles/second
The Light-Year
X 60 minutes/hour X 24 hours/dayX 365 days/year
X 60 seconds/minute
5,865,696,000,000 miles/year
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Proxima Centauri
Alpha Centauri A & B
Our Nearest Neighbors
4.2 Light-Y
ears
5 Light-Y
ears
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The Solar Neighborhood
~ 40,000 Light-YearsGalactic Center
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100,000 Light-Years
The Size of Galaxies
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The Galactic Neighborhood
2 Million Light-Years
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Hubble Deep Field Image
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Questions?