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प्रश्न
Define parsec. Is it the same as the Astronomical unit?
एका वाक्यात उत्तर
उत्तर
Parsec refers to the distance at which an arc of length equal to 1 astronomical unit subtends an angle of one second at a point.
No, a parsec is not the same as the astronomical unit (A.U.).
1 Parsec = 2 X 105 A.U.
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