Astronomy ASTR

ASTR 121 Elementary Astronomy Laboratory

Units

1

Corequisite

ASTR C1001

Transfers to

CSU, UC

Grading Method: Letter Grade or Pass/No Pass

A laboratory course emphasizing practice and interpretation of astronomical observations for students that are concurrently taking the ASTR 100 lecture course or those that have previously passed it with a grade of "C" or higher. When weather permits, students will observe objects in the sky with and without instruments such as telescopes. In-class simulations will be substituted when direct observation is not possible. The moon, stars, constellations, planets and other solar system bodies, and various deep-sky objects will be studied as well as the methods used to catalog, chart, and find them.

Not on the Summer 2026, Fall 2026, Winter 2027, Spring 2027 schedules.

ASTR C1001 Introduction to Astronomy

Units

3

Transfers to

CSU, UC

Course Offered: Spring, Fall

Grading Method: Letter Grade or Pass/No Pass

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. Online homework may be required.

Offered: Summer 2026 (1 section, listed as ASTR 100) · Fall 2026 (2 sections, listed as ASTR 100) · Spring 2027 (4 sections, listed as ASTR 100)