NASA’s Webb Telescope Discovers the Smallest Brown Dwarf Yet

By - James Smith

Brown dwarfs are celestial objects that form like stars, buat don’t produce their own light . 

They are born out of gravitationally collapsing clouds of gas and dust and have masses between 1% and 8% of the Sun that cannot sustain hydrogen fusion at their cores 

 The smallest brown dwarfs identified so far are only five to ten times heftier than the planet Jupiter .

Brown dwarfs are considered a missing link between gas giant planets and small stars 

Brown dwarfs are classified into four spectral classes, i.e., types M, L, T, and Y, and occur in a wide variety of colors (mostly invisible to human eyes) within these classifications 

Brown dwarfs that emit light that can be seen by human vision would most likely appear magenta or dark orange/red  

Brown dwarf stars cannot sustain hydrogen fusion like regular stars, but they are thought to fuse deuterium (H) if their mass is more than 13 times that of Jupiter, and lithium (Li) if they have a mass of more than 65 Jupiters 

Brown dwarfs are difficult to find, with most efforts to locate them hinging upon whether or not the spectrum of a candidate brown dwarf shows the presence of lithium, or whether or not the star is fully convective 

Brown dwarfs sustain Earth-sized storm systems in their atmospheres, and it may rain molten iron on some brown dwarf stars 

The first brown dwarf was only confirmed in 1994, although they were suspected to exist from as long ago as the early 1960s