Planet sizes

Planetary size comparisons - Diameter

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Small Planets:

Mercury - 4,880 km

Mars - 6,779 km

Venus - 12,104 km

Earth - 12,742 km

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Large Planets:

Neptune - 49,244 km

Uranus - 50,724 km

Saturn - 116,464 km

Jupiter 139,822 km

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Planetary Comparison: Relative Mass to Earth

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Small Planets:

Mercury - .055

Mars - .11

Venus - .815

Earth - 1

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Large Planets:

Neptune - 17.10

Uranus - 14.50

Saturn - 95.16

Jupiter - 317.83

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How many Earths could fit in Jupiter?: 1,300

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• Inner planets are smaller but denser
• However, outer planets have more mass than the inner planets due to their large size
• Know the distinction between mass and density

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