Exoplanets Vocabulary

How does the size of this star compare with our own? The Habitable Zone is just inside the orbit of Earth.

• smaller
• larger
• same

Does this exoplanets star have a wobble? 

• Yes
• No

________ is caused by the center of mass of the solar system is not in the center of the star.

• radial velocity
• transit
• wobble

When a planet crosses in front of the star and blocks light out. This is used to determine it's mass. 

• transit
• wobble
• radial velocity

The speed at which a planet orbit's a star and the sine curve represents it's orbit motion.

• wobble
• radial velocity
• transit
• solar speed

Judging by mass alone, what type of planet is this exoplanet? 

• terrestrial
• gas giant
• mass doesn't determine anything

Which exoplanet could support life?

• EPIC 201912552 b (in the green)
• K2-18 c (in the black)

Any exoplanet in the black area inside of the green zone is 

• too cold for life
• too hot for life
• just right for life 

Why do astronomers look for exoplanets in the green zones? 

• those exoplanets could sustain life
• they are the perfect distance away from their neighbors 
• the green represents the asteroid belts of the solar system.

These planets are mostly terrestrial because...

• of their mass
• of their radial velocity
• of their transit in front of a star
• they are not, they gas giants.