Put in the information you know. If there is not enough information to determine which class you are registering for, Stellar will provide you with a list of possibilities, and you can select from those. Once Stellar has determined which class you are registering for, it will provide you with information about the class and an opportunity to cancel or proceed.

Class #? (This button will bring up the MIT Bulletin)
Class Name?
Browse Departments:
Faculty Member?