Stellar astronomy is the branch of astronomy that focuses on the study of stars, their formation, evolution, and eventual death. It involves observing various types of stars, such as red giants, white dwarfs, and neutron stars, to understand their physical properties and behaviors. Stellar astronomers use telescopes and other instruments to gather data about stars' brightness, temperature, and chemical composition. This field also explores the life cycles of stars, from their birth in nebulae to their end stages, which can result in phenomena like supernovae or the formation of black holes. By studying these processes, scientists gain insights into the universe's structure and the origins of elements essential for life.