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How big is Phobos?

Updated: 8/9/2023
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Wiki User

12y ago

Best Answer

Because Phobos has an irregular shape, it is a captured asteroid. Therefore Phobos has an average diameter of 14 miles (22.2 km)

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13y ago
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12y ago

Wikipedia lists a "mean radius" of 11.1 km. Note that being a small object, it has an irregular shape - not round like planets or larger moons.

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9y ago

Phobos is one of the two natural satellites of the planet Mars, discovered in 1877. It has a mass of 10.6 X 10^15 kgs.

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Q: How big is Phobos?
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