brown_dwarf

Discovered a close neighbor of the Sun

This image is an artist’s conception of the brown dwarf WISE J085510.83-071442.5. The Sun is the bright star directly to the right of the brown dwarf. Credit: Robert Hurt/JPL, Janella Williams/Penn State University.

A “brown dwarf” star that appears to be the coldest of its kind — as frosty as Earth’s North Pole — has been discovered by a Penn State University astronomer using NASA’s Wide-field Infrared Survey Explorer (WISE) and Spitzer Space Telescopes. Images from the space telescopes also pinpointed the object’s distance at 7.2 light-years away, making it the fourth closest system to our Sun.

More at Penn State: Star Is Discovered To Be a Close Neighbor of the Sun and the Coldest of Its Kind