Introduction to Astronomy and Astrophysics

Astronomy and astrophysics allow us to understand the nature of celestial objects and the underlying physical laws of the cosmos. This text-based course provides a clear, foundational guide to the fundamental principles that govern our universe. You will gain a thorough overview of cosmic systems, starting from our immediate planetary neighborhood to distant galaxies. What you'll learn: Understand core astronomical terminology, celestial coordinate systems, and basic orbital mechanics. Explore the formation, composition, and physical dynamics of planets in the Solar System. Study stellar astrophysics, including nuclear fusion, spectral classification, and stellar evolution. Analyze galaxy types, cosmic structures, and modern cosmological theories regarding dark matter and cosmic expansion. Learn key historical milestones in astronomy alongside current techniques for detecting exoplanets. The material begins with basic definitions and historical context before guiding you through stellar physics and galactic astronomy. This course is tailored for beginners and space enthusiasts with no prior advanced physics background required. Step into the study of the cosmos and build a solid foundation in space science.