Showing posts with label brown dwarf stars. Show all posts
Showing posts with label brown dwarf stars. Show all posts

30 January 2014

VLT Successfully Maps Surface Features Of Brown Dwarf Luhman 16B



The European Southern Observatory for the first time has mapped the surface of a brown dwarf. ESO's Very Large Telescope charted the dark and light surface of Luhman 16B, an astronomical object known as a brown dwarf.

Brown Dwarfs are also known as a substar since these objects are too large to be planets but are not massive enough to be called stars. These objects are believed to be formed the way stars are formed but did not have enough density at the core to start a nuclear fusion.

The surface map of Luhman 16B is the first charting of the brown star which included the light and dark features of the surface. It is also the first mapping of the weather on the surface of Luhman 16B.

The brown dwarf, discovered in 2013, is only six light years from Earth and can be found in the southern constellation of Vela (The Sail). Luhman 16B forms a pair with Luhman 16A which is the brighter of the two components. The pair is collectively referred to as Luhman 16AB.

The imaging was made possible with the CRyogenic high-resolution InfraRed Echelle Spectrograph (CRIRES) attached to the VLT.

14 November 2012

Planet Floating Freely Through Space Without An Orbit Discovered



The Very Large Telescope (VLT) of the European Southern Observatory (ESO) and the Canada-France-Hawaii Telescope have discovered a planet that is freely wandering through space. It has no orbit nor a star attached to it. This planet free-floating planet is labeled CFBDSIR2149 and also referred to as CFBDSIR J214947.2-040308.9.

Free-floating planets are objects in space that are not paired up or connected to a star. They roam the universe without a predetermined orbit since there is no star to supply the gravity to put them in their place.