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10 cards from this deck
Planets outside our solar system orbiting other stars
Detects Doppler shift in starlight from star's wobble
Common centre of mass
Star moving towards Earth (shorter wavelengths)
Star moving away from Earth (longer wavelengths)
High-mass planets (stronger gravitational pull)
Dip in starlight when planet passes in front of star
Presence of a planet in stable orbit
Planet's size
Only works if orbit aligned between star and Earth
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