ASTR 20 - GENERAL ASTRONOMY

    Recent Professors
    N. Timmons, J. Wilson, C. Vogel, M. Haeri
    Recent Semesters
    Summer 2026, Spring 2026, Fall 2025, Summer 2025, Spring 2025
    Class Size
    45–46 students
    Difficulty
    4.7Moderateout of 10
    Credits
    3
    Summer 2026 Sections
    View Summer 2026 sections of ASTR 20
    Transfers To
    UC and CSUCal-GETC Area 5A · IGETC Area 5A · CSU GE Area B1
    Description
    This course introduces fundamental concepts of astronomy, including the Solar System, stars, supernovae, galaxies, black holes, and the expanding universe. Students learn how to study the cosmos and what the latest discoveries reveal about the origins and fate of the universe. Formerly offered as ASTR 20.
    Usually Held
    Thu 12:30pm–3:20pm, Tue 12:30pm–3:20pm, Tue Thu 10:30am–11:45am, Tue Thu 12:30pm–1:45pm