planet stuff

Question 1

protostar

Answer 1

large hot ball of gas (not a star yet)

Question 2

protoplanetary disk

Answer 2

mass around the protostellar sun

Question 3

inner planets

Answer 3

rocky

Question 4

outer planets

Answer 4

gaseous

Question 5

primary atmosphere

Answer 5

gasses gathered from the disk

Question 6

secondary atmosphere

Answer 6

gasses from the planet itself

Question 7

Radial Velocity

Answer 7

finds planets orbiting stars that have velocity changes

Question 8

transits

Answer 8

exoplanets move across other stars and cause changes in stellar brightness

Question 9

microlensing

Answer 9

makes a star temporarily brighter through a planet’s gravity focusing its light

Question 10

direct imaging

Answer 10

look for a planet through an image

Question 11

hot Jupiters

Answer 11

planets bigger than Jupiter that orbits close to their stars