 The metallicity of Sextans B is rather low, with a value of approximately Z = 0.001.Sextans B is receding from the Milky Way with a speed of approximately , and probably lies just outside the edge of the Local Group, so as its neighbour Sextans A.Five planetary nebulae have been identified in Sextans B, which is one of the smallest galaxies where planetary nebulae have been observed.