"Earth's Bigger Cousin" Discovered

Discussion in 'Off Topic Chat' started by danalec99, Jun 14, 2005.

  1. danalec99

    danalec99 TPF Noob!

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  2. darin3200

    darin3200 TPF Noob!

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    That's pretty cool that they can find those planets. I think they use a technique where they aim a telescope at a star and watch for small drops in its light output which would indicate a planet passed between the star and us.
     
  3. Hertz van Rental

    Hertz van Rental TPF Noob!

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    The usual method is to look for 'wobbles' in the star's position over time. Analysing the wobble can give an indication of size (and possible number) of orbiting bodies.
    Because of the distances and the small amount of movement it is only possible to detect massive orbiting bodies. This latest discovery shows quite a degree of refinement and accuracy.
     

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