Star WISE 0855-0714
Sub-brown dwarf WISE 0855-0714 is located 7 light years away from the Sun.
It is a single star of spectral class Y2, that has 1 % of solar mass.
For now, there are no known exoplanets in this star system.
More about WISE 0855-0714
Nearby brown dwarf WISE 0855-0714 is is is much smaller than the Sun and temperature on its surface is around 240 K (-33 °C), which is about 4 % of Sun's temperature.
WISE 0855-0714 can be found in southern celestial hemisphere, however it is too dim to be seen with the naked eye or even a small telescope.
Other designations of this star
WISEA J085510.74-071442.5, WISE J085510.83-071442.5
External sources
Class of stars Sub-brown dwarf
Brown dwarfs are not really stars, because there is no thermonuclear fusion in their core. These objects are smaller and cooler than stars, but too massive to be considered planets. Brown dwarfs of spectral class Y are the coolest and only a few of them have been discovered so far.