Vanant

Vanant is the Avestan language name of a minor Zoroastrian divinity. The name literally means "conqueror", but in Zoroastrian tradition Vanant is the hypostasis of the "star of the west", variously identified with Altair, Fomalhaut, or Vega.Vanant may have its origins in the Sumero-Akkadian Vanand, perhaps incorporated in the Zoroastrian pantheon as a consequence of the close relations between Iran and Babylon during the late Achaemenid era. Vanant has no calendrical dedication (see Zoroastrian calendar), but is invoked together with the other astral divinities on the second and third days of the month. From amongst the hymns invoking divinities, Yasht 21 is dedicated to Vanant. The divinity is also invoked in the hymn dedicated to Tishtrya, another star yazata for whom Vanant is a constant companion.
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[Persian] In Persian mythology, one of the four leaders of the stars which fight for Ahura Mazda; the guardian star of the west who conquers evil.