PIA23685: What is a Brown Dwarf?
This illustration shows brown dwarfs are more massive than planets but not quite as massive as stars.
 Product Size:  4800 x 2700 pixels (w x h) 
 Produced By:  JPL 
 Full-Res TIFF:  PIA23685.tif (11.43 MB)
 Full-Res JPEG:  PIA23685.jpg (523.7 kB)  

Click on the image above to download a moderately sized image in JPEG format (possibly reduced in size from original)

Original Caption Released with Image:

Brown dwarfs are more massive than planets but not quite as massive as stars. Generally speaking, they have between 13 and 80 times the mass of Jupiter. A brown dwarf becomes a star if its core pressure gets high enough to start nuclear fusion.

Image Credit:
NASA/JPL-Caltech

Image Addition Date:
2020-04-09