Doppler shift lets you see a star move back and forth. O look larger and smaller. look bluer and redder-but the shift is extremely small and is visible only if is r and away from you, so it only works from certain viewing angles. O look brighter and dimmer.
Doppler shift lets you see a star move back and forth. O look larger and smaller. look bluer and redder-but the shift is extremely small and is visible only if is r and away from you, so it only works from certain viewing angles. O look brighter and dimmer.
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![Doppler shift lets you see a star
move back and forth.
look larger and smaller.
look bluer and redder-but the shift is extremely small and is visible only if is moving towards
and away from you, so it only works from certain viewing angles.
O look brighter and dimmer.
O The Doppler shift brightens up a dim planet so you can see it.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fb3203734-fa8b-4598-9038-89e714049085%2F5e9cd2e6-813d-49ee-bcfb-143a0d37959d%2Fpp3a26_processed.png&w=3840&q=75)
Transcribed Image Text:Doppler shift lets you see a star
move back and forth.
look larger and smaller.
look bluer and redder-but the shift is extremely small and is visible only if is moving towards
and away from you, so it only works from certain viewing angles.
O look brighter and dimmer.
O The Doppler shift brightens up a dim planet so you can see it.
![What can astronomers learn from the Radial Velocity method?
Actual mass of a planet
Period of a planet's orbit
Minimum mass of a planet, because systems at the wrong inclination or viewing angle show less
Doppler effect
Period of orbit and minimum mass of a planet
O Size (radius), density and composition of a planet
Density and composition of a planet](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2Fb3203734-fa8b-4598-9038-89e714049085%2F5e9cd2e6-813d-49ee-bcfb-143a0d37959d%2Fgj4w_processed.png&w=3840&q=75)
Transcribed Image Text:What can astronomers learn from the Radial Velocity method?
Actual mass of a planet
Period of a planet's orbit
Minimum mass of a planet, because systems at the wrong inclination or viewing angle show less
Doppler effect
Period of orbit and minimum mass of a planet
O Size (radius), density and composition of a planet
Density and composition of a planet
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