Upper panel: central ~12′ × 30′ of the GALACTICNUCLEUS JHK_s survey (Nogueras-Lara et al. 2019), covering the 50 and 20 km∕s clouds (credit: ESO/Nogueras-Lara et al.). The positions of the 50 and 20km/s clouds are indicated, along with Sgr A^* and the young stellar clusters Arches and Quintuplet. Lower panel: control field (red box), where high-extinction regions (white shaded contours) are excluded, along with the 50 and 20 km/s clouds (dashed white regions) and the nuclear star cluster (NSC; dotted white region), assuming an effective radius of ~4 pc (Schödel et al. 2014a; Gallego-Cano et al. 2020).