Speculation: What's it like? (Score 1)

Yes, it's probably not a brown dwarf, but it could be several Jupiters in mass, in which case it could have its own satellites--moons? planets? It will not be bigger than Jupiter no matter how massive it is; trans-jovian masses compress into roughly the same volume as Jupiter has. It will receive negligible light from the sun, so the dark-adapted eye might see this world as a black absence of stars containing lightning flashes, and with a halo on top--the halo being the powerful aurorae of the polar regions, their energy kicked up by its radiation belts. If it has close-orbiting moons similar to Io, there might be a luminescent ring from ionized gas orbiting the equator as well. Visitors to its moons might see this world as a collection of faint flickering luminescent rings in the sky.

In my SF stories on this subject, I've dubbed worlds like this "halo worlds".

I believe the name would be "Proserpine".