Abstract:
From the well-observed data of star clusters, the age distribution of galactic clusters is obtained as a function of their linear diameter and it is concluded that the observed age distribution of clusters for different linear diameter intervals within 1500 pc, is not seriously affected by the selection effects. If we assume that the rate of formation of clusters is constant, the lifetimes τ1/2 of the clusters for different linear diameter intervals have been obtained and it is found that the clusters with a linear diameter in the range 0-1.9 pc have longer lifetimes than the clusters having linear diameters larger than 2.0 pc.
