Stars like HD 82943 are main sequence G dwarf stars with temperatures and compositions similar to the Sun . Also like the Sun, HD 82943 is known to have at least two giant planets , but unlike gas giants in our solar system their orbits are not nearly circular and bring them closer to the parent star . Such a cosmic cataclysm is illustrated above in an artist's dramatic vision. As a result, planetary debris would contaminate the outer layers of HD 82943. Startlingly, perhaps the most likely explanation for the presence of Lithium-6 today is that it is left over from planetary material which formed separately and was then absorbed by the parent star.
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