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[i]A study done by a team of French scientists may help narrow the search. In a recent paper appearing in Astronomy and Astrophysics, astronomer Agnes Fienga and colleagues looked at what effect a large Kuiper Belt planet would have on the orbits of other planets in the Solar System, focusing their study on Saturn. Thanks to NASA's Cassini orbiter, which has been orbiting Saturn since 2004, we can precisely calculate Saturn's position along its orbit. Based on the planet's "residuals", the difference between the calculated position of Saturn versus what was actually observed, the team was able to exclude two sections of its potential orbit and home in on "probable" swath and a much larger "possible" section of the orbit.[/i]
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