Question

If (theta) is the parallactic angle and (b) is a basis, the correct relationship for distance of star from earth is a. b=Stheta
b. Theta=S/b
c. b=S/theta
D. S=theta/b

Answer 1

Answer:

0=b/D

Explanation:

From the figure, tanθ=b/D

For small angle, we have tanθ∼θ

So, we get θ= b/D

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