Two ojects in Cetus were stunning in my 16" F4.5 dob: NGC 247 is impressively large as it filled almost the entire field of my pentax xl 10.5 mm eyepiece. It reminded me of the core of m-31 at higher powers. NGC 246 is an awesome planetary that looks very large with a soap bubble appearance.
Also, check-out NGC 157 which is fairly large in the eyepiece with some mottling at higher power.
Also, check-out NGC 157 which is fairly large in the eyepiece with some mottling at higher power.