Breadcrumb Home Physics PS 144 PS 144: Introduction to Astronomy Download as PDF Program Physics Lecture Hours 3 Lab Hours 3 Credits 4 ACTS Equivalent Course Number PHCS 1204 PS 144 (PHSC 1204) is a general one-semester survey of astronomy course. The course includes a basic study of the solar system, stars, galaxies, and the rest of the universe. Prerequisites MS 1023: Elementary Algebra