Asterism in Malayalam

Malayalam words whose English meaning includes “asterism”:

അത്തം (atham) — Tha 13th lunar asterism, name of a star (astro), Coma Berenies, Corvus.
ആയില്യം (aayilyam) — The ninth lunar asterism.
പുനിതം (punitham) — Purity, (astro.) 20th lunar asterism.