Chapter 24 Section 3 Outer Planets Outer Planets

Outer Planets (Jovian) General characteristics: ◦ Low density (mostly gas) ◦ Large size ◦

Jupiter Orbital distance: ◦ 778 330 000 km (5. 2 AU) ◦ Not Eccentric

Jupiter’s Moons Io ◦ 4 th largest moon in solar system ◦ Rock, sulfur

Saturn Orbital distance: ◦ 1 429 400 000 km (9. 54 AU) ◦ Not

Titan Only known satellite to have a thick atmosphere 2 nd largest moon in

Uranus Orbital distance: ◦ 2 870 990 000 km (19. 2 AU) ◦ Not

Neptune Orbital distance: ◦ 4 504 000 km (30. 06 AU) ◦ Not Eccentric

Triton 7 th largest moon in solar system Retrograde revolution Rocky core, mantle of

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Chapter 24 Section 3: Outer Planets

Outer Planets (Jovian) General characteristics: ◦ Low density (mostly gas) ◦ Large size ◦ Many moons

Jupiter Orbital distance: ◦ 778 330 000 km (5. 2 AU) ◦ Not Eccentric Year: ◦ 11. 86 y Day: ◦ 9. 925 h Temperature: ◦ Average at top of clouds 116 K (-157 o. C, -251 o. F) ◦ Extremely hot interior Diameter: ◦ 142 984 km Density: ◦ 1. 326 g/cm 3 Composition: ◦ 90% H, 10% He Axial Tilt: ◦ 3. 1 o Moons: 64 Other: ◦ Great Red Spot ◦ Huge magnetic field ◦ Thin rings

Jupiter’s Moons Io ◦ 4 th largest moon in solar system ◦ Rock, sulfur silicate ◦ Active volcanos Europa ◦ Slightly smaller than Earth’s moon ◦ Watery mantle covered with ice Ganymede ◦ Largest moon in solar system ◦ Rock and water ice Callisto ◦ 3 rd largest moon in solar system ◦ Rock and ice ◦ Thin atmosphere of CO 2

Saturn Orbital distance: ◦ 1 429 400 000 km (9. 54 AU) ◦ Not Eccentric Year: ◦ 29. 46 y Day: ◦ 10. 57 h Temperature: ◦ Average at top of clouds: 84 K (-189 o. C, 308 o. F) ◦ Extremely hot interior Diameter: ◦ 120 536 km Density: ◦ 0. 687 g/cm 3 Composition: ◦ 96% H, 3% He, little NH 3, CH 4 Axial Tilt: ◦ 26. 7 o Moons: 62 Other: ◦ Prominent rings ◦ Weak magnetic field

Titan Only known satellite to have a thick atmosphere 2 nd largest moon in solar system Rock, water ice, liquid hydrocarbons N 2, CH 4 atmosphere Surface T 94 K ( -179 o. C, -290 o. F)

Uranus Orbital distance: ◦ 2 870 990 000 km (19. 2 AU) ◦ Not Eccentric Year: ◦ 84. 3 y Day: ◦ 17. 23 h Temperature: ◦ Top of clouds: 53 K ( -220 o. C, -364 o. F) Diameter: ◦ 51 118 km Density: ◦ 1. 27 g/cm 3 Composition: ◦ Rocky core, ice mantle, H/He atmosphere Axial Tilt: ◦ 97. 77 o Moons: 27 Other: ◦ Thin rings ◦ Magnetic field

Neptune Orbital distance: ◦ 4 504 000 km (30. 06 AU) ◦ Not Eccentric Year: ◦ 164. 79 y Day: ◦ 16. 1 h Temperature: ◦ Top of clouds: 55 K ( -218 o. C, -360 o. F) Diameter: ◦ 49 532 km Density: ◦ 1. 638 g/cm 3 Composition: ◦ Fe/Ni core; mantle of H 2 O, NH 3, CH 4; atmo of H/He Axial Tilt: ◦ 28. 32 o Moons: 13 Other: ◦ Winds of 2000 kph ◦ Thin rings

Triton 7 th largest moon in solar system Retrograde revolution Rocky core, mantle of ice, surface of ice Active geysers of N 2 Captured Kuiper belt object?