The finer the grain of film the better it is for enlargments. Using ISO (ASA)100,200,400 speed films will do OK. I have done 8x10 size enlargments with good results on the moon using Kodak 200 & 400 Max. For longer exposure, especially star shots I'll use Fuji Super G 800 or 1600. They are a little grainy, so 5x7 pics will be the max for enlargments. Planets I would use either Kodak Royal Gold 400 or Fuji 400 or 800. Fuji 800 requires at least 30 seconds of exposure to obtain a decent shot with anything in the dark. Planetary shots range from 3 to 20 seconds of exposure. I would practice on the moon first. Does the camera have automatic light sensors? If so, use them. Moon shots may require filters because of the brightness. I have left out much...sorry. Here is a photo of the moon taken with Kodak 400 Max and blown up to a 8x10.