| Abstract: | An analytical representation and observational verification of a new harmonic scheme for the local system are presented. In it massive shell structures (spurs) play a dominant role, in combination with belts of stars, gas and dust. The geometry of the triaxial local system is closely coupled to the ecliptic coordinate system. Each axis has its own equator and its own discrete, periodic system of meridians. The largest axis, z, is normal to the S plane passing through the cores of four spurs (I-IV). Six meridians intersect along this axis, including the Gould belt (GB), the Vaucouleurs-Dolidze (V-D) belt, and the G plane, which is perpendicular to the ecliptic E at the solstice points. Four meridians, including E and S, intersect along the middle axis x, which coincides with the equinoctial line. The z axis is inclined by H"45° to E and by H"21° to the galactic plane. The overall number of nonrepeating principal planes in the local system is nine. Counts of stars brighter than V=9m confirms that they are concentrated along all the principal planes. As a symmetry plane, the meridian perpendicular to the Gould belt ( GB) divides the system of spurs into two groups: (I, IV, Dor) and (II, III, Eri). Each encompasses a grid of 5 halves of the z meridians and isolates a group and the spurs within the group. At the same time, as  bridges the x meridians and their equator G couple the cores of some of the spurs with the shells of others both within their own and in opposite groups. The convergence of the meridians (belts) to the X, Y, and Z poles couples all the details with the local system as a whole. The symmetry of the local system with its discrete elements resembles a crystal. |
