The planet Venus is known as the "Evening Star"
Venus is the second-closest planet to the Sun, and after Earth's Moon, it is the brightest object in the night sky. Venus reaches its maximum brightness shortly before sunrise or shortly after sunset, and is thus sometimes referred to as the "Morning Star".
It is sometimes called Earth's "sister planet", as the two are similar in size and bulk composition. However Venus has the densest atmosphere of the terrestrial planets, consisting mostly of carbon dioxide.
The planet is named after Venus, the Roman goddess of love, and most of its surface features are named after famous and mythological women. Early Chinese astronomers called the body Tai-pe, or the "beautiful white one". The Babylonians named the planet Ishtar, the personification of womanhood, and also goddess of love.
Information source: Wikipedia