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xkcd #2851: Messier Objects
(imgs.xkcd.com)
Alt text:
The debate over the correct Messier number for the Ship of Theseus is ongoing.
It really is the best part of this one.
Or the fact that he catalogued himself and he's not even number one. Like dude saw 204 shits before seeing himself in a mirror or something and he's like: "The fuck is that? Dunno.. That's M205 for now"