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    Discovering the Essential Universe
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    Exam 10: Characterizing Stars
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    The Triple-Star System α Centauri Has a Parallax of 0
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The Triple-Star System α Centauri Has a Parallax of 0

Question 252

Question 252

Multiple Choice

The triple-star system α Centauri has a parallax of 0.75 arcsec (the largest parallax known) .How far is this star system from the Sun in light-years? (Careful with units!)


A) 4.35 ly
B) 0.41 ly
C) 1.33 ly
D) 0.75 ly

Correct Answer:

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