User blog comment:Cottonmouth255/Weapon Name Origins in MH3U/@comment-193.63.43.240-20130605153732

Merak's Asterism (Lucent Narga LS) Merek is a star and Asterism refers to a constellation. Pretty much all the upgraded Lucent Nargacuga weapons follow the trend of "Sun's name + constellation" from what I've seen.