planet stuff Flashcards
1
Q
protostar
A
large hot ball of gas (not a star yet)
2
Q
protoplanetary disk
A
mass around the protostellar sun
3
Q
inner planets
A
rocky
4
Q
outer planets
A
gaseous
5
Q
primary atmosphere
A
gasses gathered from the disk
6
Q
secondary atmosphere
A
gasses from the planet itself
7
Q
Radial Velocity
A
finds planets orbiting stars that have velocity changes
8
Q
transits
A
exoplanets move across other stars and cause changes in stellar brightness
9
Q
microlensing
A
makes a star temporarily brighter through a planet’s gravity focusing its light
10
Q
direct imaging
A
look for a planet through an image
11
Q
hot Jupiters
A
planets bigger than Jupiter that orbits close to their stars
