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This article contains both fanon and canon content. It is fanon, but features canon content.
J1407b is the infamous gas giant with a gargantuan ring system. Located 420 light-years away from Earth, the planet possesses one of the largest known rings systems in the galaxy, with a diameter of about 0.6 AU (reliant on the definition of the ring) or well over 15% its semi-major axis.
History[]
Due to its size, some theories arose that it was not a "planet", but a tiny brown dwarf. It was not until the year 2005 when a scientific expedition was sent to the planet, that the issue was resolved.
The rings consist of dust particles which comes from the initial halo around the parent star, which were captured by the planet's gravity before it could accumulate into proper planets. In fact, accumulation process continues within the ring system. Several newly formed moons have been noted, with frequent impact between these bodies. This has made J1407b a fascinating subject of study amongst astronomers.
For safety and scientific reasons, both NASA and ESA had prohibited any mining or construction activities within the system, utilizing it as a massive scientific laboratory. Dozens of research outposts have been established in orbits around the planet by universities.
As of year 2016, the largest satellite spotted around J1407b i.e. J1407b-I is a rocky body with a mass of about three times that of our moon, but its orbit and physical properties are not properly documented due to the frequent impact events and gravitational disruptions. Accumulation around the planet is not expected to be complete for the next three million years, even according to the most "optimistic" models.