Radial acceleration relation of galaxies. The dashed line corresponds to unity, meaning that the baryonic acceleration (x-axis) is equal to the observed acceleration in the system (y-axis). The gray scale represents ∼2700 spatially resolved measurements in rotationally supported galaxies (spirals and dIrrs, see McGaugh et al. 2016). The black dots correspond to pressure-supported dwarf galaxies in the Local Group as compiled in Lelli et al. (2017) and come from different sources (e.g., Simon & Geha 2007; Mateo et al. 2008; Koch et al. 2009; Walker et al. 2009; Geha et al. 2010; Tollerud et al. 2012; Collins et al. 2013, 2015; Martin et al. 2014). The cyan dot represents MATLAS-2019 (Müller et al. 2020). The blue and yellow lines are two so-called ultra diffuse galaxies: NGC 1052-DF2 (Danieli et al. 2019) and NGC 1052-DF4 (van Dokkum et al. 2019). The red dot shows our new measurements for KK 197. The thick and thin lines are the 1 and 2σ uncertainties, respectively.