Wikipedia:Articles for deletion/Yuji Hyakutake
does NOT say that people only famous for one event should not have an article. It specifically states: "If the event is highly significant, and the individual's role within it is a large one, a separate article is generally appropriate." That is why Wikipedia has articles on assassins like Sirhan Sirhan who were famous only for one event. If the issue revolves around one event, the question that must be considered here is whether Comet Hyakutake is a "highly significant" event and whether Hyakutake's "role within it is a large one." I don't see an argument being made on these terms yet. A separate question, however, is whether there is something notable about Hyakutake other than this one comet. But even if he fails on that question, he can still be notable under  if the conditions I quoted hold
— User:Michitaro, 03:19, 13 January 2016 (UTC)
Stance: comment
Cited policy: WP:BIO1E (Wikipedia:Notability)