Question

relation between parsec nd 1.A.U?
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Answer 1

One A.U. is equal to the Mean distance between the Earth and the Sun. 1 A.U. = 1.496 × 10¹¹ m. Parsec : One Parsec is the distance from the semi major axis of the orbits of the earth subtends an angle of one second of arc at the centre of the sun...