Friday, Dec. 4 is the last show of the semester: it's their Pink Floyd show. Made entirely by students and faculty at the school, it's usually crowded.
Tickets are free but it's first come, first serve. Let me know if you're interested, I can try to grab a some for you when they start handing them out.
The planetarium is at Mesa Community College, close to the parking lot that is south of Southern and Dobson (on Dobson between Southern and highway 60). Shows start at 6 and go on until 10 or so (I believe). If a good sized group shows up, we could head over to the nearby Village Inn.