WISEPA J174124.26+255319.5

WISEPA J174124.26+255319.5, often called WISE 1741+2553, is a very special object in space known as a brown dwarf. Brown dwarfs are like stars, but they are not big enough to shine very brightly or for very long. This one belongs to a group called spectral class T9, which means it is quite cool compared to other brown dwarfs.

It is located in the constellation Hercules, a group of stars that looks like a hero from ancient stories. WISE 1741+2553 is very close to us—it is only about 15 light-years from Earth. That makes it one of the nearest known brown dwarfs to our planet.

Scientists discovered this brown dwarf using a telescope called WISE, short for the Wide-field Infrared Survey Explorer. Studying objects like WISE 1741+2553 helps us learn more about how stars form and what happens when they don’t grow big enough to become true stars. This nearby brown dwarf gives scientists a great opportunity to study its properties up close.

History of observations

WISE 1741+2553 was discovered in 2011 using data from the Wide-field Infrared Survey Explorer (WISE), a NASA satellite that observed the universe in infrared light. This telescope, which operated from December 2009 to February 2011, helped scientists find many new objects in space, including this brown dwarf.

Three research teams reported the discovery. One team used early WISE data and a special camera on a large telescope to study the object. Another team used powerful telescopes in Hawaii to check if it had a companion, and found that it was a single brown dwarf. The third team listed it among many new brown dwarf systems found by WISE.