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Venus is the second planet from the Sun, orbiting it every 224.7 Earth days. The planet is named after the Roman goddess of love and beauty. After the Sun & Moon, it is the brightest natural object in the sky and can on rare occasions be seen during the day. Because Venus is an inferior planet from Earth, it never appears to venture far from the Sun: seen before sunrise or shortly after sunset, for which reason it has been referred to by ancient cultures as the Morning Star or Evening Star.
Venus is classified as a terrestrial planet and is sometimes called Earth's twin planet owing to similar size, gravity, and bulk composition (Venus is both the closest planet to Earth and the planet closest in size to Earth). It is shrouded by an opaque layer of highly reflective clouds of sulfuric acid, preventing its surface from being seen from space in visible light. Venus has the densest atmosphere of the four terrestrial planets, consisting mostly of carbon dioxide. The atmospheric pressure at the planet's surface is 92 times that of Earth's. With a average surface temperature of 462 °C. Venus is by far the hottest planet in the Solar System.