This data is from the
National Space
Science Data Center's Fact Sheet site. Click on a planet's name to
bring up the fact sheet at NSSDC. I have put together a list of links to
excellent tours of each planet. Click here to
bring up that list.
| Planet | Mass | Diameter | density |
oblateness | rotation | distance |
revolution | eccentricity | inclination | axis
tilt |
| (* ME) | (km) |
g/cm3 |
[=(De-Dp)/De] |
|
(A.U.) |
|
| (deg) | (deg) |
| Mercury |
0.0553 | 4880 | 5.43 | 0.000 | 58.81
d | 0.387 | 87.97 d | 0.2056 | 7.0 |
0.1 |
| Venus |
0.815 | 12,104 | 5.20 | 0.000 | 243.69
d | 0.723 | 224.70 d | 0.0068 | 3.4 |
177.3 |
| Earth |
1.000 | 12,742 | 5.52 | 0.0034 | 23.9345
h | 1.000 | 365.26 d | 0.0167 | 0.00 |
23.45 |
| Mars |
0.107 | 6780 | 3.93 | 0.0065 | 24.623
h | 1.524 | 686.98 d | 0.0934 | 1.85 |
25.19 |
| Jupiter |
317.83 | 139,822 | 1.33 | 0.0649 | 9.925
h | 5.203 | 11.86 y | 0.04845 | 1.305 |
3.12 |
| Saturn |
95.162 | 116,464 | 0.687 | 0.098 | 10.50
h | 9.539 | 29.46 y | 0.05565 | 2.489 |
26.73 |
| Uranus |
14.536 | 50,724 | 1.32 | 0.023 | 17.24
h | 19.182 | 84.01 y | 0.0472 | 0.773 |
97.86 |
| Neptune |
17.147 | 49,248 | 1.64 | 0.017 | 16.11
h | 30.06 | 164.79 y | 0.00858 | 1.773 |
29.56 |
| Pluto |
0.0021 | 2274 | 2.05 | 0.0 | 6.405 d |
39.53 | 247.68 y | 0.2482 | 17.15 |
122.46 |
Notes: Mass is given in Earth masses (1 ME = 5.977 ×
1024 kilograms);
diameter is the ``volumetric mean diameter'' that takes into
account the planet's
oblateness; oblateness measures how much a planet bulges at the
equator [= (equatorial
- polar diameter)/(equatorial diameter)]; distance is the semi-major
axis in astronomical units (1 A.U. =
1.496 × 108 kilometers); rotation and revolution are the
sidereal rotation period and sidereal orbital period, h = hours, d = days;
eccentricity is the the orbital eccentricity = 1 -
(perihelion/semi-major axis); inclination is the tilt of the orbit
with respect to the ecliptic, and
axis tilt is the tilt of the planet's rotation axis with respect to
its
orbital plane.
last updated: 21 May 2001
Is this page a copy of Strobel's
Astronomy Notes?
Author of original content:
Nick Strobel