Brown dwarf
Videos
Brown dwarfs are substellar objects that have more mass than the biggest gas giant planets, but less than the least massive main-sequence stars. Their mass is approximately 13 to 80 times that of Jupi
Artist's concept of a T-type brown dwarf
The smaller object is Gliese 229B, about 20 to 50 times the mass of Jupiter, orbiting the star Gliese 229. It is in the constellation Lepus, about 19 light-years from Earth.
Planets, brown dwarfs, stars (not to scale)
A size comparison between the Sun, a young sub-brown dwarf, and Jupiter. As the sub-brown dwarf ages, it will gradually cool and shrink.
Luhman 16
Videos
Luhman 16 is a binary system of two brown dwarfs, located in the southern constellation Vela at a distance of 6.51 light-years from the Sun. These are the closest-known brown dwarfs and the closest sy
Luhman 16 with VLT's MUSE instrument in visible light
WISE image of Luhman 16. In the GMOS image in the inset, it is resolved into a pair.
2013 Chelyabinsk meteor trace