 The etymological origin of Agastya has several theories.One theory states that the root is "Aj" or "Anj", which connotes "brighten, effulgent one" and links Agastya to "one who brightens" in darkness, and Agastya is traditionally the Indian name for Canopus, the second most brilliantly shining star found in South Asian skies, next to Sirius.A third theory links it to Indo-European origins, through the Iranian word "gasta" which means "sin, foul", and "a-gasta" would mean "not sin, not foul".