Brown Dwarf Gliese 229B . ... Credit Copyright: R.H. Brown, D. Trilling ( U. Arizona ), C. Ftaclas ( Michigan Tech ), IRTF Explanation: The spot near the bottom is an image of an unusual type of object: a brown dwarf . ... Brown dwarfs and planets are likely quite abundant, but usually difficult to see in the glare of brighter stars they orbit. ... Above , much of the bright light of central Gliese 229A has been blocked and digitally subtracted, leaving the clearest image yet of Gliese 229B . ...