"There seems to be a star, a small brown dwarf, dead ahead."
"There was no brown dwarf here before, I'm sure of it!"
Of course, but first I'd like to know anything you can tell me about that brown dwarf.
Otherwise, if its mass is too low, the object becomes a brown dwarf.
On November 25, 2009, the object turned out to be a brown dwarf.
Theoretically, a brown dwarf has about one-12th the sun's mass or less.
And most of them did turn out to be something else, like a dim star, not a brown dwarf.
"It looks like it's consistent with maybe being a brown dwarf or a planet."
It could be a dim failed star known as a brown dwarf.
Most likely this is a brown dwarf rather than a planet.
Wörterbuch für Astronomie