Chapter 8.The Terrestrial Planets

Chapter 8.The Terrestrial Planets - The Terrestrial Planets...

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1 The Terrestrial Planets Chapter 8
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2 Small, high density, close to Sun, few moons, no rings
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3
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4 Mercury Radius = 0.382 R E =2439 km Mass 0.055 M E =3.3x10 23 kg Density = 5.43 gm/cm 3 Atmosphere = none Pressure = 0 bars Surface features = craters, maria, scarps Sidereal Day = 58.65 days Solar Day = 176 days Satellites = 0 Dist. from Sun = 0.387 AU Orbital Period = 88 days Axial tilt = 0 o
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5 Mercury Moon
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6
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7 Caloris Basin
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8
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9 “Shattered” terrain opposite the Caloris Basin
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10 Interior of Mercury
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11 Early formation of Mercury’s structure
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12 Mercury’s odd rotation perihelion
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13 Venus
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14 Venus Radius = 0.949 R E =6052 km Mass = 0.815 M E = 4.87x10 24 kg Density = 5.25 gm/cm 3 Atmosphere = CO 2 (96%), N 2 (3%) Pressure = 90 bars Surface features = craters, mountains, volcanic peaks, lava plains Sidereal Day = 243 days Solar Day = 117 days Satellites = 0 Dist. from Sun = 0.723 AU Orbital Period = 225 days Axial tilt = 177.4 o
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Chapter 8.The Terrestrial Planets - The Terrestrial Planets...

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