EBLM J0555-57 is a triple star system approximately 670 light-years from Earth.
No orbital motion has been detected but they have almost identical radial velocities and are assumed to be gravitationally bound.
A full solution of the orbit gives a period of 7 days and 18 hours, with a low eccentricity of 0.09, an almost edge-on inclination of 89.84°, and a semi-major axis of 0.08 AU.
[6] Current stellar models put its mass at the lower limit for hydrogen-burning stars.
[11] The findings were released on July 12th, 2017, though the exact date of the discovery is unknown.