Which Statement About Stellar Motion Is Incorrect

question 147

Multiple Choice

Which statement about stellar motion is incorrect?

• A) Proper motion is measured in intervals of six months.
• B) The space velocity can be found from the radial and transverse velocities.
• C) You must also know the parallax to get the transverse velocity.
• D) Radial velocity is measured by the Doppler shifts of the spectral lines.
• E) The closer stars usually show larger proper motions.

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