# Astronomy (ASTR) courses

Santa Ana College · 2026-2027 Catalog · 3 courses

Source: https://sac.curriqunet.com/catalog/iq/36813/36822/36829

"Offered" lists sections in this catalog year's class schedules: Fall 2026, Spring 2027.

### ASTR 109 — Introduction to the Solar System

- **Units:** 3
- **Hours:** 54 Lecture
- **Transfers to:** CSU, UC
- **Offered:** Fall 2026, 8 sections (/c/santa-ana-college/schedule/fall-2026/astr.md); Spring 2027, 6 sections (/c/santa-ana-college/schedule/spring-2027/astr.md)

Surveys history of astronomy, recent research and observations of the planets, moons, and other solar system objects. Exploration of light and gravity to understand formation, properties, and motion of Solar System objects.

### ASTR 110 — Introduction to Stars and Galaxies

- **Units:** 3
- **Hours:** 54 Lecture
- **Transfers to:** CSU, UC
- **Offered:** Fall 2026, 5 sections (/c/santa-ana-college/schedule/fall-2026/astr.md); Spring 2027, 5 sections (/c/santa-ana-college/schedule/spring-2027/astr.md)

Surveys the development of astronomy, current research and observations of stars, galaxies, and large-scaled structures in the universe. Exploration of light and gravity to understand the properties and evolution of stars, neutron stars, black holes, galaxies, and the universe's structures and changes.

### ASTR 140 — Astronomy Laboratory

- **Units:** 1
- **Hours:** 54 Lab
- **Prerequisite:** Completion with a grade of "C" or better or a Passing grade in: ASTR 109 ASTR 110 or concurrent enrollment.
- **Transfers to:** CSU, UC
- **Offered:** Fall 2026, 1 section (/c/santa-ana-college/schedule/fall-2026/astr.md); Spring 2027, 1 section (/c/santa-ana-college/schedule/spring-2027/astr.md)

Utilizes experimental techniques to explore and comprehend properties and motions of celestial objects. Basic naked-eye, binocular, and small telescope observing techniques will be introduced. Field trips to local planetaria and dark sky locations may be included.