If moon = 1 px is your yardstick, then I can see not putting Voyager up there, but otherwise I'm with you. If you stick Pluto in at about 2/3 the size of the m

If moon = 1 px is your yardstick, then I can see not putting Voyager up there, but otherwise I'm with you. If you stick Pluto in at about 2/3 the size of the moon, no reason not to include Eris (about the same size as Pluto) and the half dozen or so other TNOs that are a half or more the size of Pluto.