"Gliese 229B was considered the poster-child brown dwarf, and now we know we were wrong all along about the nature of the object. It's not one but two." A well-studied cosmic object has stunned ...

Scientists have puzzled over the object known as Gliese 229B, the first known brown ... who was not involved with the research. The twins orbit a small star about 18 light-years away.

And that was exactly the case: Gliese 229 B is composed of a 38-Jupiter-mass brown dwarf in a mutual orbit with a 34-Jupiter-mass brown dwarf, orbiting each other just 4 million miles (6.4 million ...

A pair of recently uncovered brown dwarf twins, named Gliese 229ba and Gliese 229bb ... times larger than the distance between earth and the moon. The brown dwarf pair orbit a cool m-dwarf star every ...

that circle one another every 12 days as they orbit their sun every few hundred years. We sought to test whether Gliese 229 B is a brown dwarf binary. To evade astronomers’ notice for 30 years ...

So the brown dwarf that three decades ago was named Gliese 229B is now recognized as ... Binary brown dwarfs are a rarity. These two orbit each other every 12 days at a distance of only 16 times ...

A well-studied cosmic object has stunned astronomers. The "failed star" Gliese 229B has been revealed to be two so-called ...

A well-studied cosmic object has stunned astronomers. The "failed star" Gliese 229B has been revealed to be two so-called "brown dwarfs" that are closely orbiting each other rather than just one. The ...