Astronomy (ASTR)

How to Read Course Descriptions

ASTR 4A.     Introduction to the Solar System. 3 Units

Prerequisite(s): One year of high school geometry or instructor permission.

General Education Area/Graduation Requirement: Physical Science (B1)


Description and explanations of astronomical phenomena and measurements related to the Solar System and exoplanets. Structure and evolution of planetary systems. Formation of solar systems and planets. Occasional observation periods.

ASTR 4B.     Introduction to Stars, Galaxies, and Cosmology. 3 Units

Prerequisite(s): One year high school geometry or instructor permission.

General Education Area/Graduation Requirement: Physical Science (B1)


Description and explanations of astronomical phenomena related to stars, galaxies, and cosmology. Structure and evolution of stellar and galactic systems. Occasional observation periods.

ASTR 4C.     Introduction to Astrobiology. 3 Units

Prerequisite(s): One year high school geometry or instructor permission.

General Education Area/Graduation Requirement: Physical Science (B1)


Nature and history of scientific inquiry into life outside the Earth. Definitions of life. Habitability of planets and moons in our Solar System and of extrasolar planets. Likelihood of intelligent life outside Earth and rationale for the Search for Extra-Terrestrial Intelligence.

ASTR 6.     Astronomical Observation Laboratory. 1 Unit

Prerequisite(s): ASTR 4A, ASTR 4B, or ASTR 4C with C- or better; may be taken concurrently.

General Education Area/Graduation Requirement: Physical Science (B1), Laboratory (B3)


Study and use of various telescopes; field observation of planets, stars, meteors, asteroids, the moon and sun; laboratory activities relevant to astronomy. Lab three hours.

ASTR 131.     The Solar System and Space Exploration. 3 Units

Prerequisite(s): ASTR 4A or ASTR 4B or 4C or PHYS 11A or CHEM 1A and GWAR certification before Fall 09; or WPJ score of 80+; or 3-unit placement in ENGL 109M or ENGL 109W ; or 4-unit placement in ENGL 109M or ENGL 109W and co-enrollment in ENGL 109X; or WPJ score 70 or 71 and co-enrollment in ENGL 109X.

General Education Area/Graduation Requirement: Further Studies in Area B (B5), Writing Intensive Graduation Requirement (WI)


Planets and satellites, including their composition, structure, and atmospheres, with emphasis on modern techniques and observations. Solar surface phenomena and their influence on planets through the solar wind. Comets, meteorites, and their implications for the origin and evolution of planets. Physical effects governing feasible forms of space exploration and colonization.

Note: This course is approved as a Writing Intensive course.

ASTR 132.     Stars, Galaxies and Cosmology. 3 Units

Prerequisite(s): ASTR 4A or ASTR 4B or 4C or PHYS 11A or CHEM 1A and GWAR certification before Fall 09; or WPJ score of 80+; or 3-unit placement in ENGL 109M or ENGL 109W; or 4-unit placement in ENGL 109M or ENGL 109W and co-enrollment in ENGL 109X; or WPJ score 70 or 71 and co-enrollment in ENGL 109X.

General Education Area/Graduation Requirement: Writing Intensive Graduation Requirement (WI), Further Studies in Area B (B5)


Types and evolution of stars; structure and evolution of galaxies; overall structure of the universe; current developments in astronomy.

Note: This course is approved as a Writing Intensive course.

ASTR 150.     Dark Matter and Dark Energy. 3 Units

Prerequisite(s): PHYS 106

Corequisite(s): PHYS 110


Introduction to historical, observational and theoretical principles of dark matter and dark energy in the Universe. Topics will include dark matter in galaxies (rotation curves, stellar motions), dark matter in clusters (virial theorem, x-ray observations), MACHOs and WIMPs as dark matter candidates, as well as the discovery of dark energy through supernovae observations, and additional probes of dark energy. Dark matter and dark energy will be discussed in the cosmological context of the Big Bang theory.

ASTR 199.     Special Problems. 1 - 2 Units


Individual projects or directed reading.

Note: Open only to students competent to assume individual work on approval of the instructor. Up to 2 units may be taken for a grade.

Credit/No Credit