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5 Cards in this Set

  • Front
  • Back
Radius of the earth
6400 km
distance to the sun
150,000,000 = 1.5x10 to the 8th = 1 AU.
Nearest star
250,000 AU = 4.2 ly
speed of light
300,000 km/second
nearest large galaxy
2.5 x 10 to the 6th ly