He also suggested that such an object might also explain the trans-Neptunian object Sedna's peculiar orbit.

他认为，这样的一颗天体也许还能够解释外海王星天体赛德娜的奇特轨道。

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He also suggested that such an object might also explain the trans-Neptunian object Sedna's peculiar orbit.

他认为，这样的一颗天体也许还能够解释外海王星天体赛德娜的奇特轨道。

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