Recent SemestersFall 2026, Summer 2026, Spring 2026, Fall 2025, Summer 2025Class Size25–45 studentsCredits1PrerequisiteCompletion of, or concurrent enrollment in ASTR 100 or 115 or 125 (ASTR 115 and 125 are offered at College of San Mateo). Successful completion of Elementary Algebra or equivalent, or placement by other measures as applicable. Transfers ToUC and CSUCal-GETC Area 5C · IGETC Area 5C · IGETC Area 5A · CSU GE Area B3DescriptionIntroduction to the tools and methods of astronomy and understanding of the scientific process. Introduction to the celestial sphere, scale model solar system, telescopic observations, use of computer models, comparative planetology, and astronomical data representation.Usually HeldMon Wed 11:10am–12:25pm, Wed 11:10am–1:40pm 