RGB image of the galaxy cluster PLCK-G287 obtained by combining the HST images with the software fits2rgb1 (Red: F105W, F110WF125W, F140WF160W. Green: F814W. Blue: F435W, F475W, F606W). The yellow dashed line indicates the footprint of the MUSE spectral data cubes. The cyan circles and green squares indicate the spectroscopic and CNN-identified cluster members, respectively (see Sect. 3.1), while the orange and blue diamonds indicate, respectively, the spectroscopic foreground and background objects. The two BCGs that have been modeled independently of the other members are indicated by the red and cyan stars. The redshift estimates for the objects outside the MUSE footprint come from VIMOS and DEIMOS observations (see Sect. 2.2). Histograms show the redshift distribution of objects in the HST footprint: the one on the right is a zooming that shows the redshift of the BCG (z = 0.383, solid red line) and the thresholds used to select cluster members (0.360 ≤ z ≤ 0.405, dashed lines). The solid black line shows the distribution of members with F160W Kron magnitude values equal or lower than 21.