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Example 2.3 The moon is observed troho diametrically.ăwo diametrically opposite points A and Bory Darth. The angle e subtended at theoon by the two directions of observationis 1°54', Given the diameter of the Earth tobe about 1.276 x 107 m, compute thedistance of the moon from the Earth |
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Answer» Here parallactic angle, ø=1°54'=114'=(114×60)"=114×60×4.85×10^-6 rad = 3.32×10^-2 radBasis, b=AB=1.276×10^7 mSo, the distance of the moon from the earth, S= b/ø =(1.276×10^7)÷(3.32×10-2)= 3.84×10^8 (ans) Here parallactic angle, ø=1°54'=114'=(114×60)"=114×60×4.85×10^-6 rad = 3.32×10^-2 radBasis, b=AB=1.276×10^7 mSo, the distance of the moon from the earth, S= b/ø =(1.276×10^7)÷(3.32×10-2)= 3.84×10^8 (ans) thaks |
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