Digital astrophotographers soon realize that files build up quickly on their hard drives. Because some files can be quite large, you need a strategy of what to archive.

Your "raw data" of images that you collected/created over many nights represents hours of effort and telescope time.

In addition, you can spend hours calibrating and processing this data, which creates many intermediate files.

Keith, our Vice President and avid night sky photographer, will share his methods and ideas for how to deal with this explosion of files and how to sensibly curate (or delete) them.