Low-mass stars are typically defined as having a mass between 0.08 and 0.8 solar masses.

Here's a breakdown:

* 0.08 solar masses (M☉): This is the lower limit for a star to sustain nuclear fusion in its core. Objects below this mass are brown dwarfs, which are not considered true stars.

* 0.8 solar masses (M☉): This is the upper limit for low-mass stars. Stars with masses above this limit are considered intermediate-mass stars.

Therefore, the range of star masses for low-mass stars is 0.08 M☉ to 0.8 M☉.