Table 1: The 23 ENACS clusters with galaxy samples complete to MR = -19.5 (H0 = 100 km s-1  Mpc-1).
ACO ${cz_{\rm 3K}}$ ${\sigma_V}$ Center ${ N_{\rm memb}}$ ${N_{\rm type}}$
87 16 149 875 Geometric 17 17
119 12 997 744 X-ray 63 62
151 12 074 399 Density peak 15 15
151 15 679 693 X-ray 37 37
168 13 201 524 X-ray 50 50
548E 12 400 706 X-ray 43 43
548W 12 638 819 X-ray 53 52
754 16 754 769 X-ray 38 38
957 13 661 691 X-ray 24 24
978 16 648 497 cD-galaxy 51 47
2040 13 974 602 X-ray 31 31
2052 10 638 654 X-ray 25 22
2401 16 844 475 cD-galaxy 23 22
2734 18 217 579 X-ray 38 38
2799 18 724 493 cD-galaxy 34 34
3122 19 171 780 Density peak 61 61
3128 17 931 809 X-ray 145 145
3158 17 698 977 X-ray 87 85
3223 17 970 597 cD-galaxy 53 52
3341 11 364 561 X-ray 25 25
3528 16 377 1040 X-ray 28 28
3651 17 863 662 cD-galaxy 78 78
3667 16 620 1064 X-ray 99 99
The columns give: the ACO number, the average velocity of the cluster in the CMBR reference frame ( ${cz_{\rm 3K}}$ in km s-1), the global velocity dispersion of the cluster ( ${\sigma_{\it V}}$ in km s-1), the way in which the center of the cluster was determined, the number of member galaxies in this sample ( ${ N_{\rm memb}}$), and the number of member galaxies in this sample with a galaxy type ( ${N_{\rm type}}$), either from CCD-imaging and/or from the spectrum.

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