Chapter 15 Solar System Flashcards
1
Q
Defines planets, dwarf planets, and small solar system bodies
A
International Astronomical Union (IAU)
2
Q
Mercury, Venus, earth, and mars
Mostly rocky materials, metallic nickel, and iron
A
Terrestrial Planets
3
Q
Jupiter, Saturn, Uranus, and Neptune
Mostly hydrogen, helium, and methane
A
Giant planets
4
Q
No atmosphere
0.4 AU
Orbital period 3 months
Rotational period 59 days
A
Mercury
5
Q
CO2 atmosphere
High temperature
0.7 AU
Exhibits phases
A
Venus
6
Q
Thin atmosphere CO2 mostly 1.5 AU Inactive volcanoes Canyons Numerous spar probes
A
Mars
7
Q
5 AU
318 x’s earth’s mass
Mostly H and He
Great Red Spot
A
Jupiter
8
Q
9.5 AU from sun
Rings of particles and more than 60 orbiting moons
Titan moon
A
Saturn
9
Q
19 AU
Outermost planets
Similar structures
A
Uranus
10
Q
30 AU
Outermost planet
Similar internal structures
A
Neptune
11
Q
Origin of long period comets
30 AU to light year away
A
Oort Cloud
