Figure 4
From: A deep investigation of the poorly studied open cluster King 18 using CCD VRI, Gaia DR3 and 2MASS

The radial density profile (RDP) of King 18.
From: A deep investigation of the poorly studied open cluster King 18 using CCD VRI, Gaia DR3 and 2MASS

The radial density profile (RDP) of King 18.