Brown Dwarf

A "failed" star, which is more massive than a planet but not massive enough to ignite nuclear fusion reactions at its core and shine as a true star.


Colorful Dwarfs Most of the stars in our Milky Way galaxy are...

Radio Programs

Pleiades IV Failed stars in a bright cluster Thursday, November 12, 2015
The Neighborhood Getting to know the neighbors Thursday, August 7, 2014
Close Quartet A nearby stellar quartet Sunday, June 22, 2014
Hot Weather Hot weather on failed stars Monday, January 13, 2014
Stormy Skies A giant storm on a failed star Wednesday, January 11, 2012
Brown Dwarfs III Objects that don’t show the extra pounds Thursday, November 25, 2010
Brown Dwarfs II A place for a tough umbrella Wednesday, November 24, 2010
Not-Brown Dwarfs Painting the colors of failed stars Tuesday, November 23, 2010

Featured Images

Artist's concept of Scholz's Star passing close to the solar system
Former Neighbor Thursday, May 7, 2015
Artist's concept of weather on a brown dwarf
Hot Rain Wednesday, January 8, 2014
Artist's concept of a dark storm on the brown dwarf 2MASS 2139
Stormy Skies Wednesday, January 11, 2012


©2015 The University of Texas McDonald Observatory