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Astronomy
Planets - Mars - Phobos
Bulk Parameters
Orbital Parameters
| Bulk Parameters |
| Mass |
10.8 × 1015 kg |
| Major Axis Radius |
13 km |
| Minor Axis Radius |
9 km |
| Mean Density |
1 900 kg m-3 |
| Geometric Albedo |
0.06 |
| Visual Magnitude |
+11.8 |
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| Orbital Parameters |
| Mean Distance from Mars |
9 377 km |
| Sidereal Orbit Period |
0.318 91 days |
| Orbital Inclination |
1.08 ° |
| Orbital Eccentricity |
0.0151 |
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