Question

A star is situated 36 light years from Earth.When measured from two extreme locations of Earth?s orbit, the parallactic angle formed by this star is

Answer 1

$$\begin{gathered} Dearstudent, \\ Given, \\ A\hspace{0.17em}starissituatedat36lightyearsfromearth \\ weknowthatparalaticange,Sin\theta =\frac{Radiusofearthsorbit}{36lightyears}=\frac{1.5\times {10}^{11}}{36\times 9.46\times {10}^{15}} \\ \Rightarrow Sin\theta =0.0227 \\ \Rightarrow \theta =1.3° \\ Regards \end{gathered}$$