Only 75 students will be allowed to sign up for any given night. You can sign up for a planetarium night as long as there are spaces available. TA's will hold on to the sign up sheets until the last afternoon section of that same day. Please arrive on time. If you arrive more than about 5 minutes late, you will not be allowed to disrupt the darkened planetarium by coming in late, and you will not get credit for the supplemental lab.
Same rules apply as with the first lab.
You may not attend two planetarium labs during the same week. This lab activity will last for about an hour, and you will need to bring your lab manual to participate. The observing lab will only be held if the weather is clear is enough to see the stars. If it is mostly cloudy, rainy or worse, then no lab will be held. If no lab is held, you need simply to show up on some other night.