Which Statement About Stellar Motion Is Incorrect

question 27

Multiple Choice

Which statement about stellar motion is incorrect?

• A)In general, the closer a star is, the more its proper motion.
• B)The radial velocity is measured by the Doppler shift.
• C)The transverse velocity is measured by the proper motion and the distance.
• D)Like parallax, proper motion is measured over intervals of exactly six months.
• E)The Pythagorean theorem relates space, transverse, and radial velocities.

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