Chapter 23 Objectives. List the differences between Jovian and Terrestrial planets. Describe the major characteristics of all planets. Discuss possible theories on the formation of the universe. List and define the other minor members of the solar system. . NEED TO KNOW.
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1. The formation of the solar system from a huge cloud of dust and gases is called the ____.
2. Which planet has a greater mass than the combined mass of all the remaining planets and their moons?
3. Which planet is associated with the Great Dark Spot?
4. Jupiter’s Great Red Spot is believed to be a ____.
5. Most asteroids lie between the orbits of ____.
6. Which planet is considered the least dense?
7. Which of the following is NOT a Jovian/Gas planet?
8. Which planet has a dense carbon dioxide atmosphere and high surface temperatures?
matter that collided and clumped together
through a process called accretion.
shaped body formed by colliding
“Planet”: Greek for wanderer
Terrestrial: Earth like; Relatively small and rocky.
Jovian: Jupiter like; Huge gas giants.
Size: The most obvious difference.
Rate of Rotation: Terrestrial planets spin slower on average.
Density: Terrestrial planets are much more dense.(Terrestrial = 5 times of water; Jovian = 1.5 times)
Chemical Makup: Terrestrial planets are rocky (silicates), Jovian planets are made up of gas.
My very eager mother just sent us nine pizza’s.
Marys violent Eyes Make John Stay Up Night
Can you make your own acronym?
Revolution: 687 Earth days
Rotation: 1.025 Earth days
Temperature -220°F to 68°F
Atmosphere: CO2 & small amounts of water vapor.
Identified: Spring like gullies created from a collapse of surface material or from liquid water?
Because water is essential for life, scientists are very eager to locate and find liquid or frozen water.
Asteroid: Small rocky body revolving around our sun.
Look like “flying mountains.”
Total mass together = 1/1000 of Earth’s
meteor or shooting star.
Atmosphere: Hydrogen and Helium
Jupiter has rings too!!!! Not even visible with a telescope.
Voyager 1 took this photo of Jupiter and two of its satellites, Io on the left and Europa on the right. Io is about 217,000 mi above Jupiter's Great Red Spot; Europa is about 372,000 mi above Jupiter's clouds. Although both satellites have about the same brightness, Io's color is different from Europa's. Io's equatorial region shows two shades of red, possibly indicating different surface materials.
Diameter: 32,193 miles
Distance: 1,784,000,000 miles (19.2 AU)
Picture taken in 1994 when pluto was within 30 billion miles (~30 AU)
Wasn’t discovered until 1930
According to the new definition, a full-fledged planet is an object that orbits the sun and is large enough to have become round due to the force of its own gravity.
In addition, a planet has to dominate the neighborhood around its orbit.
Pluto has been demoted because it does not dominate its neighborhood.
Charon, its large "moon," is only about half the size of Pluto, while all the true planets are far larger than their moons.
Pluto will now be dubbed a dwarf planet.
Pluto and Charon as seen by the
Hubble Space Telescope.