A star is located 9 ly away from us. what is it's distance in parsec? what is the parallax shown by this star when viewed from two locations 3*10^11 m apart.
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As we know the conversion factor is,
1 light year=0.306601 parsec
So, the distance of the star in parsec is,
d=9 light years=9×0.306601=2.759409 parsec
The parallax shown by the star is,
Parallax Angle=bD=3×10119.461×1015ϕ=0.32×10−4 rad
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