ネオワイズ彗すい星せいMeanings1nounComet NEOWISERefers to the comet C/2020 F3 (NEOWISE), discovered in 2020. Used in astronomical and general contexts.2020年ねん、ネオワイズ彗すい星せいが肉にく眼がんでも見みえるほど明あかるくなった。In 2020, Comet NEOWISE became bright enough to be seen with the naked eye.