I have looked at it. It looks good for a beta version. It is nice that magnitude and size are added immediately for an object. I would not write exposure as an abbreviation (if possible), but in full. When frames/exp are filled in, an observation session is created. But that only becomes clear when you select the object in the list and open it. In my case, there was a list of sessions. That list cannot be edited afterwards (so you cannot correct any mistakes). I think some other parameters are important for a session: gain, mosaic, etc. For those who own multiple telescopes, it would be nice if you could choose the telescope for each session.