VENUS

Venus is only a little smaller than Earth, is made up of rock, and has an atmosphere, but it is otherwise quite unlike our planet. Its surface is covered with volcanoes, the atmosphere is crushing, and the temperature is hotter than an oven. Venus completes its orbit in 225 Earth days, but turns slowly, taking 243 Earth days to rotate once. This means that a day on Venus is longer than its year.

Table 10. ESSENTIAL DATA

Diameter at equator12,104 km (7,521 miles)
Average distance from Sun108.2 million km (67.2 million miles)
Orbital period224.7 days
Rotation period243 days
Mass (Earth=1)0.82
Gravity (Earth=1)0.9
Average surface temperature464°C (867°F)
Number of moons0
VOLCANIC LANDSCAPE

Maat Mons is one of the largest volcanoes on Venus. Around 200 km (125 miles) across, it rises 9 km (5 1/2 miles) in height. Probably extinct, it has erupted repeatedly in the past, spewing out vast quantities of runny lava that formed the surrounding volcanic plains.

CLOUDY ATMOSPHERE

The atmosphere of Venus is much thicker than that of Earth and is made up mostly of carbon dioxide. Its pressure is nearly 100 times Earth’s atmospheric pressure. The dense clouds in the atmosphere are made up of sulphuric acid droplets. The atmosphere traps heat like a greenhouse, sending the temperature soaring to more than 475°C (900°F).

Copyright © 2007 Dorling Kindersley

stay connected

Sign up for our free email newsletters and receive the latest advice and information on all things parenting.

Enter your email address to sign up or manage your account.

Facebook icon Twitter icon Follow Us on Pinterest

editor’s picks

highlights

Printable Spring Fun To-Do List
Enjoy the warmer weather by using this printable checklist of fun springtime activities for your whole family.

Kindergarten Readiness App
It's kindergarten registration time! Use this interactive kindergarten readiness checklist, complete with fun games and activities, to practice the essential skills your child needs for this next big step. Download the Kindergarten Readiness app today!

Top 10 Earth Day Books for Children
Celebrate the environment by reading some of these great children's books about Earth Day, recycling, planting trees, and all things green!

Prom Dress Trends for 2014
Check out 2014 prom dress trends inspired by celebrities’ red carpet looks, but with a price tag under $100!