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Astro Exam 2: Outer Solar System
Terms in this set (39)
What is Jupiter primarily composed of?
Hydrogen and helium
What are the layers of Jupiter made of?
Ammonia and ammonia compounds
What is the Great Red Spot?
A storm that has lasted for about 300 years
Aside from the Great Red Spot what is the weather on Jupiter like?
Winds of hundreds of miles per hour, thick clouds
How long is Jupiter's day
What is Jupiter like below the top cloud layers?
It's gaseous on the outside, then liquid hydrogen, then more dense metallic hydrogen, possibly surrounding a solid core
How does Jupiter have a magnetic field?
It has metallic hydrogen inside, which circulate and makes a magnetic field
Tidal heating on Io causes:
So if tidal heating warms up the interior of Europa there might even be a _______ underneath that icy crust
Liquid water ocean
Like Europa Ganymede also has
an icy crust
Callisto is about the same size as:
Why is Jupiter only slightly larger than Saturn?
Adding mass increases gravity and compresses gasses
What is Saturn made of?
Hydrogen and Helium
Saturn is less dense than
What are Saturn's rings made of?
The rings are made of billions of icy particles that range in size from tiny grains to mountains
Which of Saturn's moons has one bright side and one dark side?
Which moon orbits in the opposite direction relative to the others (Saturn)?
Which of Saturn's moons is thick and nitrogen rich?
Do you think they could survive on the surface of Titan without a space suit; maybe just an oxygen tank?
No its far too cold
Why is Uranus blue?
It has methane in its atmosphere, which absorbs red light and makes the planet appear blue-green
What's underneath Uranus's atmosphere?
It's sort of like Jupiter its gaseous on the outside and has an extended liquid core consisting mostly of water, methane and ammonia on the inside
Why is Uranus on its side?
A large collision early in its formation could have tipped it over
What's up with the magnetic field? uranas
No the magnetic field is offset from the planet's core and is tilted with respect to the axis of rotation
How are the Moons of Uranus named?
They are named after characters in Shakespeare's plays
Are Uranus and Neptune Made of the same substance?
Yes, the composition is similar. Methane gives it a blue color
What is underneath Neptune's atmosphere?
It's kind of like Uranus, its gaseous on the outside, and has an extended liquid ocean. But Neptune also has a heavier, Earth-sized core
Is the spot on Neptune similar to the Great Red Spot on Jupiter?
Yes, but wind speeds are even higher on Neptune than on Jupiter
How would you describe Neptune's magnetic field?
It's like Uranus' and much stronger than earth's
How is there an atmosphere on Triton?
The gas comes from Triton's ice volcanos
What are the only bodies in the solar system that exhibit volcanism?
Triton, Enceladus, Io and the terrestrial planets
How is Pluto different than the other objects in the Kuiper belt?
It's not really that special
What is a dwarf planet?
Any object orbiting the Sun that is large enough to be rounded but not one of the 8 planets
What distinguishing a dwarf planet like Pluto from a regular planet?
It has not cleared the neighborhood around its orbit
Is there anything beyond the Kuiper belt?
Yes, there is an enormous, diffuse cloud of about a trillion comets
What's the difference between the Kuiper belt and the Oort cloud?
Comets form the Oort cloud have longer periods, comets form the Kuiper belt tend to orbit in the same plane as the planets in the solar system
Which of the following is not a characteristic of Jovian planets? A) they all have many moons B) they have a higher density than terrestrial planets C) they are larger than terrestrial planets D) they are farther from the Sun and farther apart from each other than the terrestrial planets E) they have deep atmosphere made of hydrogen, helium and hydrogen compounds
Which planet has a moon with many sulfur volcanoes?
Which planets have a rocky, relatively dense composition?
Mercury, Venus, earth and mars
What properties characterize all the Jovian planets?
Many moons, large size low densities
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