Planck emission map at 353 GHz of the Chamealeon-Musca complex (Planck Collaboration I 2016). The names of the relatively dense regions in the complex are indicated in white. The black circle indicates the region where Gaia data were extracted to investigate the distance of the Musca filament and cloud. The Planck resolution at 353 GHz is 4.8′, which corresponds to a physical size of 0.25 pc at a distance of 180 pc (Zucker et al. 2019).