23.3 Outer Planets

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Most distant minor planet

Pluto

Jupiter's interior is

a sea of liquid and metallic hydrogen

What are the gas Giant atmospheres made of

hydrogen and helium gases

Great Red Spot on Jupiter

on-going massive hurricane-like storm that is two-times the size of Earth; wind speeds up to 540 km/hr

All four gas giants have

rings

What are the gas Giant cores made of

rocks and metals

What is the core of Jupiter made up of

solid, rocky iron core

Characteristics of a Gas Giant

More massive than terrestrial; less dense than a terrestrial too.

what do the orange, gray, blue and white bands on Jupiter suggest

ammonia, methane and water vapor

Outer Planets

five planets farthest from sun: Jupiter, Saturn, Uranus, Neptune and Pluto

why did Jupiter not become a star

it did not have enough mass to allow nuclear fusion to begin

Why did Jupiter keep its atmosphere

Gravity was greater, did not allow gases to escape into Universe; distance from sun kept it from boiling off

four major moons of Jupiter

Io (volcanically active), Europa (ice), Ganymede (largest), Callisto (cratered)

What is the largest planet in the solar system

Jupiter -- has the mass of 300 Earths

composition of Jupiter's atmosphere

92% helium and hydrogen; much like the sun

How long does it take Jupiter to rotate

9h 50m; it is the fastest planet to rotate in the solar system

Gas Giant

A planet with a deep, massive atmosphere

How long is the orbit of Jupiter

12 years

How big is Jupiters mass

2 1/2 times greater than the mass of all other solar system planets and moons combined

What is the temperature on Jupiter

30,000 degrees C

How many moons does Jupiter have

63


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