The planetary system is believed to be the largest ever detected beyond the sun.
Astronomers have confirmed the presence of five planets and have tantalising evidence of two more.
The distance of the planets from their parent star follow a regular pattern, similar to that seen in our own solar system.
''We have found what is most likely the system with the most planets yet discovered,'' said Dr Christophe Lovis, who led the European southern Observatory (ESO) scientists.
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