ASTROPHYSICS AND SPACE SCIENCE, cilt.259, sa.3, ss.279-284, 1998 (SCI-Expanded)
Evolution of the gravitational contraction phase of stars having masses 0.3 < M/M. < 1.5 were studied along with deuterium burning. The equation of state developed by Mihalas et al. (1988) and OPAL opacity tables were used in our investigation. The theoretical time Lines were compared with observations.