ASTR 120 - The Solar System

    Recent Professors
    Kent Schwitkis, Mahbub Khan
    Recent Semesters
    Fall 2026, Summer 2026, Spring 2026, Winter 2026, Fall 2025
    Class Size
    30–36 students
    Difficulty
    6.7Demandingout of 10
    Credits
    3
    Prerequisite
    None
    Fall 2026 Sections
    View Fall 2026 sections of ASTR 120
    Transfers To
    UC and CSUCal-GETC Area 5A · IGETC Area 5A · CSU GE Area B1
    Description
    This course is an introduction to the major planets and the smaller members of the solar system such as moons, asteroids, Kuiper Belt Objects, and comets. Theories of the origin and histories of the planets are presented. The early history of astronomy and the Copernican Revolution are discussed. Sky phenomena such as constellations, the seasons, eclipses, and planetary motions are demonstrated in the planetarium. The possibility of life elsewhere in the solar system is examined.
    Usually Held
    Mon Wed 9:35am–11:00am