"Comet Hale-Bopp"

To be honest, the only reason this comet makes it on the list is because of the awesome surname of the second discoverer after whom it's named. Thomas Bopp has a pretty interesting Wikipedia page, but suffice it to say that he has an awesome name. One that Poison were perhaps referring to with their top-ten hit "Unskinny Bop".

Yes, I concede that that's the most obscure reference in the history of obscure references. Even Dennis Miller would shake his head.

Anyway, Mr Bopp gave his name to the comet that caused a bunch of cultists to kill themselves, and the world was given the cool name "Hale-Bopp". That beats "Kohoutek" for 'cool comet names', but faces steep competition from "Whipple", "Väisälä", "Swift-Tuttle", "Hug-Bell", "Miss Mitchell's Comet" and "de Kock-Paraskevopoulos".

The competition for cool comet names is a fierce one. Who knew?