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CLIP 9827

The looping movement of Mars in the night sky

The looping movement of Mars in the night sky

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Key Info
  • The looping movement of Mars in the night sky
  • Duration: 02:28
  • An explanation of the looping motion of Mars across the sky when viewed from Earth. It took 2000 years to unravel why Mars does not travel in a straight line across the night sky. A demonstration shows that this is because the Earth is not at the centre of the Solar System. Published as part of the Solar System website: Please note this clip is only available in Flash.
  • Subject:



    Phys: Solar System

  • Keywords: sun, Mars, loop, outerspace, orit
Ideas for use in class
  • To provide evidence the Sun is at the centre of the Solar System and explain the looping motion of Mars.
Background details
  • Clip language : English
  • Aspect ratio : 16x9

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