Introductory astronomy and astrophysics cover the observation and physical analysis of celestial bodies and the universe as a whole. While focuses on observing and cataloging celestial objects, astrophysics applies the laws of physics and chemistry to explain how these objects function, evolve, and interact. Core Concepts & Curriculum
: The study of the universe's origin (the Big Bang), expansion, dark matter, and dark energy. Recommended Resources Introductory Astronomy and Astrophysics
A standard introductory course typically begins with fundamental physics and Earth-based observations before moving to the broader cosmos: nuclear fusion reactions
Depending on your mathematical background, different resources may be more suitable: Astronomy: A Free, Online Astro 101 Textbook and black holes. : Spherical astronomy
: The internal structure of stars, nuclear fusion reactions, and the life cycles of stars—from formation to remnants like white dwarfs, neutron stars, and black holes.
: Spherical astronomy, celestial mechanics (gravity and motion), and astronomical instruments like telescopes and spectrographs.
: Understanding the electromagnetic spectrum, photometry, and how light reveals the temperature, mass, and composition of stars.