Planet Data

 

Planet

Astronomical
Units*

Classroom
Scale (in cm)

Millions of
Kilometers

Millions of
Miles

Mercury

0.4

4

57.9

36

Venus

0.7

7

108.2

67

Earth

1.0

10

149.6

93

Mars

1.5

15

227.9

142

asteroids**

2.8

28

418.9

257

Jupiter

5.2

52

778.3

485

Saturn

9.5

95

1,427.0

890

Uranus

19.2

192

2,869.6

1780

Neptune

30.1

301

4,496.6

2810

Pluto

39.5

395

5,900

3670

* An astronomical unit (AU) is a distance unit based on the average distance of the Earth from the Sun.

** The asteroid belt is a region between the orbits of Mars and Jupiter in which most of the Solar System's asteroids are located. An asteroid is a small, generally rocky, solid body orbiting the sun and ranging in diameter from a few meters to hundreds of kilometers.