|
Planet |
Distance from the
Sun in astronomical units (One astronomical unit is equal to the
distance between the Earth and the sun or about 93,000,000 miles.) |
Rotation |
Size as Compared to
the Earth
(Earth = 1)
The radius of the Earth at the equator is 3,963
miles and at the poles is 3,950 miles. |
Orbital Period as
Compared to Earth Years |
Gases in Atmosphere |
Number of Moons |
| Mercury |
.388 |
Once every 58.65
Earth days |
.382 |
.24 |
None |
0 |
| Venus |
.722 |
Once every 243.01
Earth days |
.949 |
.62 |
Carbon Dioxide, Nitrogen |
0 |
| Earth |
1.000 |
Once every 23.934
Earth hours |
1.000 |
1.00 |
Nitrogen, Argon, Oxygen, Water |
1 |
| Mars |
1.524 |
Once every 24.366
Earth hours |
.529 |
1.88 |
Carbon Dioxide, Nitrogen, Argon,
Oxygen |
2 |
| Jupiter |
5.203 |
Once every 9.83 Earth
hours |
11.21 |
11.86 |
Hydrogen, Helium |
16 |
| Saturn |
9.539 |
Once every 10.23
Earth hours |
9.46 |
29.46 |
Hydrogen, Helium |
20 |
| Uranus |
19.19 |
Once every 17.2 Earth hours |
4.01 |
84.01 |
Hydrogen, Helium |
15 |
| Neptune |
30.6 |
Once every 16.11 Earth hours |
3.88 |
164.8 |
Hydrogen, Helium, Methane |
8 |
| Pluto |
39.6 |
Once every 6.39 Earth days |
.18 |
247.7 |
Nitrogen |
1 |
