Gaia DR2 objects within 20 pc plotted in the color–absolute magnitude diagram. The gray points are all objects within 20 pc; the orange points are all objects that pass the BP/RP filter; the blue points are objects that pass both the BP/RP excess filter and the RUWE < 1.4 filter (the sample used to make the blue curve in Fig. 1). The gray points form a clump below M_G ≃ 15 mag. These have unreliable astrometry and photometry. On the blue side of the main sequence the white dwarf cooling sequence is apparent.