The planet orbiting J1407 is designated as J1407 b. It has a diameter of 126,272 kilometers and orbits its star at a distance of 500 million kilometers. J1407 b is famous for its giant rings. They are at least 180 million kilometers in diameter, which is larger than the 50 nearest stars to the Sun lined up and it is also double the size of Mercury's orbit. However, with a mass of 20 times that of Jupiter, it is possibly a brown dwarf. Gaps were found the rings, which indicates that moons (called Exomoons) were formed in the first discovered exosolar rings.
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