Comparison: Phobos vs. Mars
This chart shows the differences between Phobos and Mars.
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|
|
|
|
A. Hall |
Known by the Ancients |
|
1877 |
Unknown |
|
9,378 km |
227,936,640 km |
|
13.4 x 11.2 x 9.2 km |
3,397 km |
|
10,630,000,000,000,000 kg |
641,850,000,000,000,000,000,000 kg |
|
1.026 Earth days |
1.026 sidereal days |
|
0.015 |
.0934 |
|
1 degree |
1.8 degrees |
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