George please correct me if I am wrong... but is the kind of thing that you are after, in a way, the answer to the question... 'Is that what it would look like through the porthole if I was approaching it?'

The sun is a special case since its a bit brightish.... but for the others... is that what you are after? (It is what I would like to see.... to show the kids....)

Nice idea... I hope someone with the time and capability to verify the science finds one....