Optical image of the CNC. (Left panel: DSS2 red in grayscale; right panel: DSS2 red in grayscale www.eso.org/public/images/eso0905b/; image credit: ESO/Digitized Sky Survey 2, Davide De Martin). North is up and east to the left. The circles show the clusters and groups whose distance and age is compatible with being a part of Car OB1. Circles in magenta represent clusters with counterparts in the literature, circles in green clusters without counterparts. The clusters’ radii are chosen as the radii in which 75% of their cluster members reside.