|
Click a name for that planet's NSSDC Fact Sheet, including links
to all the information on its moons and rings. |
|
Quantity |
Mercury |
Venus |
Earth |
Mars |
Jupiter |
Saturn |
Uranus |
Neptune |
|
mass, gm |
3.30E+26 |
4.87E+27 |
5.97E+27 |
6.42E+26 |
1.90E+30 |
5.68E+29 |
8.68E+28 |
1.02E+29 |
|
diameter, cm |
4.88E+08 |
1.21E+09 |
1.28E+09 |
6.79E+08 |
1.43E+10 |
1.21E+10 |
5.11E+09 |
4.95E+09 |
|
density, gm cm-3 |
5.43 |
5.24 |
5.51 |
3.93 |
1.33 |
0.687 |
1.27 |
1.64 |
|
gravity, cm s-2 |
3.70E+02 |
8.90E+02 |
9.80E+02 |
3.70E+02 |
2.31E+03 |
9.00E+02 |
8.70E+02 |
1.10E+03 |
|
escape speed, km s-1 |
4.30 |
10.4 |
11.2 |
5.00 |
59.5 |
35.5 |
21.3 |
23.5 |
|
rotation period, s |
5.07E+06 |
-2.10E+07 |
8.60E+04 |
8.86E+04 |
3.56E+04 |
3.85E+04 |
-6.19E+04 |
5.80E+04 |
| day
length, s |
1.52E+07 |
1.01E+07 |
8.64E+04 |
8.89E+04 |
3.56E+04 |
3.85E+04 |
6.19E+04 |
5.80E+04 |
|
average solar distance, cm |
5.79E+12 |
1.08E+13 |
1.50E+13 |
2.28E+13 |
7.79E+13 |
1.43E+14 |
2.87E+14 |
4.52E+14 |
|
perihelion distance, cm |
4.60E+12 |
1.08E+13 |
1.47E+13 |
2.07E+13 |
7.41E+13 |
1.36E+14 |
2.73E+14 |
4.47E+14 |
|
aphelion distance, cm |
6.98E+12 |
1.09E+13 |
1.52E+13 |
2.49E+13 |
8.16E+13 |
1.51E+14 |
3.00E+14 |
4.56E+14 |
|
orbital period, s |
7.60E+06 |
1.94E+07 |
3.16E+07 |
5.94E+07 |
3.74E+08 |
9.29E+08 |
2.64E+09 |
5.17E+09 |
|
average orbital speed, km s-1 |
47.4 |
35 |
29.8 |
24.1 |
13.1 |
9.7 |
6.8 |
5.4 |
|
orbital inclination, deg |
7.0 |
3.4 |
0.0 |
1.8 |
1.3 |
2.5 |
0.8 |
1.8 |
|
orbital eccentricity |
0.206 |
0.007 |
0.017 |
0.094 |
0.049 |
0.052 |
0.047 |
0.010 |
|
obliquity to orbit, deg |
0.034 |
177.4 |
23.4 |
25.2 |
3.10 |
26.7 |
97.8 |
28.3 |
|
surface-average temperature, K |
440 |
737 |
288 |
208 |
163 |
133 |
78.2 |
73.2 |
|
surface atmospheric pressure, dyne cm-2 |
0.00E+00 |
9.20E+07 |
1.00E+06 |
1.00E+04 |
no solid surface |
|
number of moons as of September 2023 |
0 |
0 |
1 |
2 |
95 |
146 |
27 |
14 |
|
rings? |
No |
No |
No |
No |
Yes |
Yes |
Yes |
Yes |
|
global magnetic field? |
Yes |
No |
Yes |
No |
Yes |
Yes |
Yes |
Yes |
|
|
|
For many more solar-system details from NASA: |
|
National Space Science Data Center solar-system fact sheets |
https://nssdc.gsfc.nasa.gov/planetary/ |
|
Solar-System Exploration website |
https://solarsystem.nasa.gov/planets/overview/ |
|
And from the Carnegie Earth and Planets Laboratory: |
|
Scott Sheppard's Moons pages |
https://sites.google.com/carnegiescience.edu/sheppard/moons |
|