Tags: Star.
Lambda Leonis (λ Leo λ Leonis) is a star in the constellation Leo. It has the traditional name Alterf from the Arabic الطرف aṭ-ṭarf the view (of the lion).This star along with ξ Cnc were the Persian Nahn the Nose and the Coptic Piautos the Eye both lunar asterisms.Lambda Leonis is of spectral class K5 and apparent magnitude +4.32. It is approximately 336 light years from Earth.