Recent SemestersFall 2026, Spring 2026, Fall 2025, Spring 2025, Fall 2024Class Size524–527 studentsCredits1PrerequisiteASTR A100 , ASTR A100H , ASTR A101 , ASTR A102 , ASTR A103 or ASTR A104 , or concurrent enrollment. Transfers ToUC and CSUCal-GETC Area 5C · IGETC Area 5C · CSU GE Area B3DescriptionA laboratory course designed for non-science majors. It will provide practical experience with the scientific method through outdoor astronomical observations and indoor analysis of experimental data. Enrollment Limitation: ASTR A100L ; students who complete ASTR A100M may not enroll in or receive credit for ASTR A100L .Usually HeldTue Thu 2:20pm–3:45pm, Thu 6:30pm–9:40pm 