Introduction to Astronomical Observations Credit Hours: 1 hour. 2 hours lab per week. How to use small astronomical telescopes and reduce data gathered at the telescope. This is an introduction to observational astronomy for Physics and Astronomy majors. Students will spend ten hours at the telescope and twenty hours in data reduction during the semester. Offered fall and spring semester every year. Prerequisite or Corequisite: ASTR 1110 or ASTR 1120 or ASTR 1110H or ASTR 1120H Duplicate Credit: Not open to students with credit in ASTR 1110L, ASTR 1120L Semester Offered: Fall Spring Course Type: Lab Level: Undergraduate