Introductory Astronomy — And Astrophysics

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

Depending on your mathematical background, different resources may be more suitable: Astronomy: A Free, Online Astro 101 Textbook Introductory Astronomy and Astrophysics

: Formation and dynamics of planets, moons, asteroids, and the Sun. Introductory Astronomy and Astrophysics

A standard introductory course typically begins with fundamental physics and Earth-based observations before moving to the broader cosmos: Introductory Astronomy and Astrophysics