  We hereby reported a new physical binary cluster (ASCC~19 and ASCC~21) near
the Orion star-forming complex based on the data in the literature. Analysis of
the results shows that it is a primordial binary cluster. It is possible that
this binary cluster is undergoing two-body relaxation by inspecting the radial
velocity anomalies of its member stars. In addition, based on the analysis of
its metal abundances, we found that the components of this binary cluster may
have been formed by the deep fusion of multiple subclusters. Finally, we
investigated the 3D morphology of this binary cluster, simulated the
trajectories of its components in the galactic disk, and concluded that its
components may not merge into a single cluster.
