**Stellar Evolution** ===================== .. py:currentmodule:: symplyphysics.astronomy.stellar_evolution **Contents:** .. toctree:: :maxdepth: 4 astronomy.stellar_evolution.approximate_time_of_stars_location_on_the_main_sequence astronomy.stellar_evolution.lifetime_of_star_on_main_sequence astronomy.stellar_evolution.luminosity_of_sun_in_future_from_luminosity_in_present astronomy.stellar_evolution.luminosity_of_sun_in_past_from_luminosity_in_present