HR-1614 AND THE DISSOLUTION OF A SUPERCLUSTER

A few main-sequence members of the HR 1614 supercluster have been found within 40 parsecs of the Sun. The convergent point of the proper motions is (A,D) = (8h.38,-58-degrees.7) and V(TOT) = 59.0 km/s. Thirty-nine members of the HR 1614 group, with mean V = - 5 8.4 km/s, have been found near the Sun as well as nineteen red giants within 200 parsecs. Both the supercluster and group members have Hyades abundance of heavy elements but CN strengths equalled by less than five percent of the stars near the Sun. The age of the supercluster and group stars is near that of those in the cluster M67, 5 x 10(9) yr on the basis of models without convective overshoot or 6.3 X 19(9) yr for models with overshoot. The stellar density near the Sun is similar for both Hyades supercluster and the combined HR 1614 supercluster and group members.