Notes. (1) cluster name; (2) right ascension of the BCG; (3) declination of the BCG; (4) magnitude gap between the two brightest member galaxies; (5) magnitude gap between the first and the fourth brightest member galaxies; (6) absolute magnitude of the BCG, computed using SDSS DR16; (7) redshift of the BCG; (8) virial mass of the object estimated from X-ray data; (9) virial radius, estimated from X-ray data; (10) X-ray bolometric luminosity; (11) publication from which the original L_X data were taken: [1] Harrison et al. (2012), [2] Zarattini et al. (2014), [3] Proctor et al. (2011), [4] Jones et al. (2003), [5] La Barbera et al. (2012), and [6] Zibetti et al. (2009). ^(*)R₂₀₀ radius computed in this work from the X-ray luminosity given in the original work. We use Eq. (2) from Böhringer et al. (2007) to compute R₅₀₀ and then convert it to R₂₀₀ using R₂₀₀ = 1.516 × R₅₀₀ (Arnaud et al. 2005; Girardi et al. 2014).