Distances In Space
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Distances In Space

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Distances In Space Presentation Transcript

  • 1. Distances in Space
  • 2.
    • Rotation – the spinning of a body on it’s axis
    • Revolution – the spinning of a body around another body (ex. sun)
  • 3. Perihelion
    • An object’s position closest to the sun along it’s orbit
  • 4. Aphelion
    • An object’s position furthest from the sun along it’s orbit
  • 5. Draw and Label
    • Draw the diagram and label APHELION and PERIHELION
  • 6. Draw and Label
    • Draw the diagram and label APHELION and PERIHELION
  • 7.
    • Think about Kepler’s Laws of Planetary Motion…
    • At which position would the planets move faster? Perihelion of Aphelion? Why?
    • Animation
  • 8.
    • ONE MINUTE PAPER (to be turned in)
    • Answer the following question in about 1-2 minutes. Focus on your answer, since the time is limited.
    • Is it possible for Earth to be at Perihelion and Mars to be at Aphelion? Explain.
    • Draw a diagram of how this would look.
  • 9. How do scientists measure Distance in Space
    • Podcast /article
    • Parallax – see change in apparent position based on location
    • Newer technologies such as radar
  • 10.
    • The distance from Earth to the sun is 1 AU (Astronomical Unit) about 93 million miles
    • We can compare the distances in the solar system by AU’s
    • But what if something is extremely far away?
  • 11. Light Years
    • The distance it takes light to travel in one year
    • Is the same as:
      • 6.324×10 4   AU
      • or
      • 5.879×10 ¹²   mi
    To Infinity…and Beyond