You will be asked to sign up for a particular observing night Monday through Thursday. All observing sessions will be announced in advance both in lecture and on the bulletin boards. In the case of bad weather, an observing lab will be rescheduled. Decisions about the weather will be made at least an hour before the observation is scheduled. In addition to the nighttime observations, the observing labs will include some work using Voyager .
Details are in the lab manuals.
Observing labs are due one week after observations are made and subject to the late penalties described above. If you have not signed in at the observatory at the beginning of the session you will not receive credit for the lab.