For my midterm I have two "plans." Plan A depends on whether or not I can get my hands on a piece of equipment (computerized telescope mount) or not. If not then I will be going with Plan B.
Plan A is to take a photo very similar to this one. It will be a composite of two final images, each one being composed of about 20 sub-exposures of different lengths, mostly 5-minutes.
Plan B is "deserted city" image. The idea behind this is to take enough photos and composite them so that all the cars, pedestrians, etc. are removed from what would have otherwise been a busy part of the city. Here is an example of one.