Stellar characteristics refer to the properties and features of stars, including their size, mass, temperature, luminosity, composition, evolutionary stage, and behavior. Stellar characteristics are crucial for understanding the life cycle of stars and their impact on galaxies and the universe as a whole. Researchers study stellar characteristics through observations, theoretical models, and simulations to gain insights into the formation, evolution, and ultimate fate of stars. This research area helps astronomers and astrophysicists further our understanding of the universe and its fundamental processes.