Properties of the Planets

Distance of Mercury (AU)

0.4 AU

Period of Mercury (years)

88 days = 1/4 year

Diameter of Mercury (Earth=1)

0.4

Mass of Mercury (Earth=1)

0.05

Density of Mercury (Water=1)

5.4

Distance of Venus (AU)

0.7 AU

Period of Venus (years)

224 days

Diameter of Venus (Earth=1)

0.95

Mass of Venus (Earth=1)

0.8

Density of Venus (Water=1)

5.3

Distance of Earth (AU)

1.0 AU

Period of Earth (years)

1.0

Diameter of Earth (Earth=1)

1.0

Mass of Earth (Earth=1)

1.0

Density of Earth (Water=1)

5.5

Distance of Mars (AU)

1.5 AU

Period of Mars (years)

1.88 years (2)

Diameter of Mars (Earth=1)

0.5

Mass of Mars (Earth=1)

0.1

Density of Mars (Water=1)

3.9

Distance of Jupiter (AU)

5 AU

Period of Jupiter (years)

11.86 years (12)

Diameter of Jupiter (Earth=1)

11

Mass of Jupiter (Earth=1)

300

Density of Jupiter (Water=1)

1.3

Distance of Saturn (AU)

10 AU

Period of Saturn (years)

29.46 years (30)

Diameter of Saturn (Earth=1)

9.5

Mass of Saturn (Earth=1)

95

Density of Saturn (Water=1)

0.7

Distance of Uranus (AU)

20 AU

Period of Uranus (years)

84.07 years

Diameter of Uranus (Earth=1)

4.0

Mass of Uranus (Earth=1)

15

Density of Uranus (Water=1)

1.2

Distance of Neptune (AU)

30 AU

Period of Neptune (years)

164.8 years

Diameter of Neptune (Earth=1)

3.9

Mass of Neptune (Earth=1)

17

Density of Neptune (Water=1)

1.6

Distance of Pluto (AU)

40 AU

Period of Pluto (years)

248.6 years (250)

Diameter of Pluto (Earth=1)

0.18

Mass of Pluto (Earth=1)

0.002

Density of Pluto (Water=1)

2.1