The orbital parameters given above are based on calculations assuming that this planetary object orbits the star J1407. There is some considerable doubt about this, and it now seems more likely that J1407 b does not in fact orbit the star, but rather represents a chance detection of a rogue planet that briefly eclipsed J1407, as seen from Earth.
The central star in this image is J1407 or V1400 Centauri, a young star that was eclipsed by a substellar object in the year 2007. The nature of that eclipsing object is not known with certainty, but it was likely a brown dwarf with a broad circumplanetary disc. Its relationship to the star J1407 is also unknown; it may be an outlying planet on orbit around that star, but it is now generally thought to be a rogue planet that happened to pass between J1407 and Earth. Imagery provided by Aladin sky atlas
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