Ross 128 is a nearby red dwarf star about 10.9 light-years away. It is the eleventh closest star system to the Sun, and is the closest star system in the constellation Virgo. It appears in the northeastern corner of Virgo near the Ecliptic, south of Beta Virginis. At magnitude 11.11, it is too faint to be seen with the naked eye. The star was discovered in 1925 by Frank Elmore Ross. Its closest neighbor is Wolf 359, 3.79 light years away.
This cool, dim, main-sequence M4.1 Vn red dwarf has almost a third the sun's mass, a tenth of its diameter, but only 1/3000th of its luminosity. Ross 128 is a flare star with variable star designation is FI Virginis. In contrast to Proxima Centauri, which is a "magnetically younger" flare star that is "activity saturated", however, Ross 128 is considered to be a more "evolved" flare star whose flare rate may have decreased somewhat with increased magnetic evolution. Dust has been detected around the star.