A star is 5.5 light years away from the earth. How much parallax in arcsec will it subtend when viewed from two opposite points along the orbit of the earth?
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Hello Dear,
◆ Answer -
θ = 2.46×10^-10 rad
◆ Explaination -
# Given -
x = 5.5 ly = 5.2×10^16 m
d = 12.8×10^6 m
# Solution -
Let x be distance between the star & earth and d be earths diameter.
Angle of parallax is given by -
θ = d / x
θ = 12.8×10^6 / 5.2×10^16 m
θ = 2.46×10^-10 rad
Therefore, angle of parallax would be 2.46×10^-10 rad.
Thanks dear...
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