hesperus

/ˈhɛspərəs/
noun
  1. The planet Venus when it appears in the evening sky as the evening star.
    • The poet wrote about Hesperus as a symbol of twilight and beauty.
    • As the sun set, Hesperus shone brightly in the western sky.
    • Ancient astronomers called the evening star Hesperus, while the morning star was called Phosphorus.