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Facts About Our Solar System

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Some interesting facts about our solar system so you can impress your friends (maybe).

The planets are listed in order from closest to the Sun heading outward. The diameter is listed in kilometers, number of moons and rings are indicated, temperature is listed in degrees Fahrenheit, days and years are in relation to Earth's time scale, mass is listed as compared to Earth if Earth's mass equalled 1, and AU stands for Astronomical Units, or the distance from the Sun, with Earth being 1 AU from the Sun.

Mercury

  • 4878 km diameter
  • 0 moons
  • 0 rings
  • -279 F to 800 F
  • 88 Earth days = 1 Mercury year
  • 59 Earth days = 1 Mercury day
  • .06 mass
  • .3 AU from the Sun

Venus

  • 12,104 km diameter
  • 0 moons
  • 0 rings
  • 900 F
  • 225 Earth days = 1 Venus year
  • 243 Earth days = 1 Venus day
  • .82 mass
  • .7 AU from the Sun

Earth

  • 12,756 km diameter
  • 1 moon
  • 0 rings
  • 56 F
  • 365 days = 1 Earth year
  • 24 hours = 1 Earth day
  • 1 mass
  • 1 AU from the Sun

Mars