SIZE: 7,521 miles (12,104 km) diameter
DISTANCE FROM SUN: an average of 67,230,000 miles (108,200,000 km)
ATMOSPHERE COMPOSITION: Carbon dioxide, nitrogen, water vapor, argon, carbon monoxide, neon, sulfur dioxide.
TEMPERATURE: 864 degrees Fahrenheit (462 degrees Celsius).
ONE DAY: 243 Earth days.
ONE YEAR: 225 Earth days.
NATURAL SATELLITES: none
DISTINCTIVE FEATURE: Often called Earth's "twin" planet because of size, but conditions on Venus are very far from Earth's.