Thanks John - I was able to set this up as a Timelapse of 30 second exposures and simply ran it overnight till the battery gave out. All tolled, it’s between 3 and 4 hours of exposure.
There is an issue with Uploading Photos (attachjments). I am not sure what the problem is, and I am looking into it. You can still try to Create your Threads and Upload your Photos, but it is hanging up during the Upload.