I'm curious if there is any comprehensive list of the deep sky objects where Sky Safari shows a photo-realistic image of the object when you zoom in. For example, The LMC and SMC don't show images in the application. It appears that all the Messier Objects have images, but I find many other objects without these images.
I use Sky Safari is a (perhaps) unusual way - as a companion to articles I read in Sky and Telescope and Astronomy magazines. I find this helpful to get more information about objects discussed in the magazines and context about location in the sky and related to objects. Many of the objects described in the magazines - along with printed images - don't have photo-realistic images in Sky Safari. I realize Sky Safari can't support everything, but I' not clear as when I should expect to find images.