  Recent observations of the Coma cluster of galaxies in its central region
have provided approximately 250 new redshifts - allowing a good membership
criterion to be established for brighter galaxies - and magnitudes for 8000
objects in the same region derived from photometric data complete up to
V$_{26.5}$=22.5. A thorough structural study of the galaxy distribution of the
cluster galaxies, jointly with an X-ray wavelet analysis, and with a
kinematical analysis of the velocity distribution allows us to uncover a
primary body of the cluster, with evidence for a velocity gradient.
